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Posted to issues@iceberg.apache.org by "Elbehery (via GitHub)" <gi...@apache.org> on 2025/07/25 08:45:51 UTC
[PR] test: add write operations test suite [iceberg-go]
Elbehery opened a new pull request, #497:
URL: https://github.com/apache/iceberg-go/pull/497
This PR adds test suite for write operations.
Inspired by [TestRewriteFiles](https://github.com/apache/iceberg/blob/main/core/src/test/java/org/apache/iceberg/TestRewriteFiles.java)
cc @laskoviymishka
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "Elbehery (via GitHub)" <gi...@apache.org>.
Elbehery commented on code in PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#discussion_r2231254691
##########
tests/write_operations_test.go:
##########
@@ -0,0 +1,813 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package tests
+
+import (
+ "context"
+ "fmt"
+ "path/filepath"
+ "strconv"
+ "strings"
+ "testing"
+
+ "github.com/apache/arrow-go/v18/arrow"
+ "github.com/apache/arrow-go/v18/arrow/array"
+ "github.com/apache/arrow-go/v18/arrow/memory"
+ "github.com/apache/arrow-go/v18/parquet/pqarrow"
+ "github.com/apache/iceberg-go"
+ iceio "github.com/apache/iceberg-go/io"
+ "github.com/apache/iceberg-go/table"
+ "github.com/google/uuid"
+ "github.com/stretchr/testify/suite"
+)
+
+// Mock catalog implementation for testing
+type mockedCatalog struct{}
+
+func (m *mockedCatalog) LoadTable(ctx context.Context, ident table.Identifier, props iceberg.Properties) (*table.Table, error) {
+ return nil, nil
+}
+
+func (m *mockedCatalog) CommitTable(ctx context.Context, tbl *table.Table, reqs []table.Requirement, updates []table.Update) (table.Metadata, string, error) {
+ bldr, err := table.MetadataBuilderFromBase(tbl.Metadata())
+ if err != nil {
+ return nil, "", err
+ }
+
+ for _, u := range updates {
+ if err := u.Apply(bldr); err != nil {
+ return nil, "", err
+ }
+ }
+
+ meta, err := bldr.Build()
+ if err != nil {
+ return nil, "", err
+ }
+
+ return meta, "", nil
+}
+
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+ return fs.(iceio.WriteFileIO)
+}
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // Create new consolidated file
+ consolidatedPath := fmt.Sprintf("%s/data/consolidated.parquet", s.location)
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify file count reduction
+ snapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(snapshot)
+
+ // Verify data integrity by scanning
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(5), results.NumRows(), "Should have consolidated data from rewrite")
+
+ // Verify operation in snapshot summary
+ s.Equal(table.OpOverwrite, snapshot.Summary.Operation)
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := fmt.Sprintf("%s/data/consolidated1.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := fmt.Sprintf("%s/data/consolidated2.parquet", s.location)
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ _, err1 = tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
+ if err2 != nil {
+ s.T().Logf("Transaction conflict detected: %v", err2)
+ } else {
+ s.T().Log("Transaction completed without conflict - conflict detection may not be fully implemented")
+ }
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestOverwriteFiles() {
+ s.Run("OverwriteByPartition", func() {
+ // Note: Partition-specific operations require more complex setup
+ // For now, demonstrate basic overwrite capability
+ ident := table.Identifier{"default", "overwrite_partition_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ initialSnapshot := tbl.CurrentSnapshot()
+
+ // Create new data to simulate partition overwrite
+ mem := memory.DefaultAllocator
+ newData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 10, "data": "new_foo", "ts": 1672531200000000},
+ {"id": 20, "data": "new_bar", "ts": 1672534800000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer newData.Release()
+
+ // Write new file for overwrite
+ newFilePath := fmt.Sprintf("%s/data/new_partition_data.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, newFilePath, newData)
+
+ // Overwrite with new data
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{newFilePath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify new snapshot
+ newSnapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(newSnapshot)
+ s.NotEqual(initialSnapshot.SnapshotID, newSnapshot.SnapshotID)
+ })
+
+ s.Run("OverwriteWithFilter", func() {
+ // Test overwrite with row-level filters
+ ident := table.Identifier{"default", "overwrite_filter_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create replacement data
+ mem := memory.DefaultAllocator
+ replacementData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "updated_foo", "ts": 1672531200000000},
+ {"id": 4, "data": "new_data", "ts": 1672549200000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer replacementData.Release()
+
+ // For now, this demonstrates file-level replacement
+ // True row-level filtering would require delete files
+ consolidatedPath := fmt.Sprintf("%s/data/replacement.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, replacementData)
+
+ // For this test, we'll demonstrate overwrite by creating a new file
+ // and replacing specific known files rather than discovering them dynamically
Review Comment:
added https://github.com/apache/iceberg-go/pull/497/commits/3500678da94bc7b2f0eb91c2523cec5fdefd4cf9
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "Elbehery (via GitHub)" <gi...@apache.org>.
Elbehery commented on PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#issuecomment-3119296044
i fixed the linter issues, can u re-run plz
cc @zeroshade
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "Elbehery (via GitHub)" <gi...@apache.org>.
Elbehery commented on code in PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#discussion_r2231666312
##########
table/table_test.go:
##########
@@ -1202,6 +1202,1059 @@ func TestTableWriting(t *testing.T) {
suite.Run(t, &TableWritingTestSuite{formatVersion: 2})
}
+// WriteOperationsTestSuite provides comprehensive testing for advanced write operations
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+
+ return fs.(iceio.WriteFileIO)
+}
+
+// =============================================================================
+// SNAPSHOT VALIDATION HELPERS
+// =============================================================================
+
+// validateSnapshotFiles checks that the snapshot contains exactly the expected files
+func (s *WriteOperationsTestSuite) validateSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ // Get actual files from snapshot using public API
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var actualFiles []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ actualFiles = append(actualFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for comparison
+ expectedSorted := make([]string, len(expectedFiles))
+ copy(expectedSorted, expectedFiles)
+ slices.Sort(expectedSorted)
+ slices.Sort(actualFiles)
+
+ s.Equal(len(expectedSorted), len(actualFiles), "File count mismatch - expected %d files, got %d", len(expectedSorted), len(actualFiles))
+ s.Equal(expectedSorted, actualFiles, "File paths don't match expected.\nExpected: %v\nActual: %v", expectedSorted, actualFiles)
+
+ s.T().Logf("Snapshot file validation passed: %d files match expected", len(actualFiles))
+}
+
+// validateSnapshotSummary checks operation type and summary properties
+func (s *WriteOperationsTestSuite) validateSnapshotSummary(snapshot *table.Snapshot, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+ s.Require().NotNil(snapshot.Summary, "Snapshot summary should not be nil")
+
+ s.Equal(expectedOp, snapshot.Summary.Operation, "Snapshot operation mismatch")
+
+ if expectedCounts != nil {
+ for key, expectedValue := range expectedCounts {
+ actualValue, exists := snapshot.Summary.Properties[key]
+ s.True(exists, "Summary property %s should exist", key)
+ s.Equal(expectedValue, actualValue, "Summary property %s mismatch - expected %s, got %s", key, expectedValue, actualValue)
+ }
+ }
+
+ s.T().Logf("Snapshot summary validation passed: operation=%s, properties=%d", expectedOp, len(expectedCounts))
+}
+
+// validateManifestStructure validates manifest files and returns total entry count
+func (s *WriteOperationsTestSuite) validateManifestStructure(snapshot *table.Snapshot, fs iceio.IO) int {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+ s.Greater(len(manifests), 0, "Should have at least one manifest")
+
+ totalEntries := 0
+ for i, manifest := range manifests {
+ // Validate manifest is readable
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest %d", i)
+ totalEntries += len(entries)
+
+ // Validate manifest metadata
+ s.Greater(manifest.Length(), int64(0), "Manifest %d should have positive length", i)
+ s.NotEmpty(manifest.FilePath(), "Manifest %d should have valid path", i)
+
+ s.T().Logf("📄 Manifest %d: %s (%d entries, %d bytes)", i, manifest.FilePath(), len(entries), manifest.Length())
+ }
+
+ s.T().Logf("Manifest structure validation passed: %d manifests, %d total entries", len(manifests), totalEntries)
+
+ return totalEntries
+}
+
+// validateSnapshotState performs comprehensive validation of snapshot state
+func (s *WriteOperationsTestSuite) validateSnapshotState(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.T().Logf("🔍 Validating snapshot state (ID: %d)", snapshot.SnapshotID)
+
+ // Validate all components
+ s.validateSnapshotFiles(snapshot, fs, expectedFiles)
+ s.validateSnapshotSummary(snapshot, expectedOp, expectedCounts)
+ entryCount := s.validateManifestStructure(snapshot, fs)
+
+ // Ensure manifest entries match file count
+ s.Equal(len(expectedFiles), entryCount, "Manifest entry count should match expected file count")
+
+ s.T().Logf("🎉 Complete snapshot validation passed for snapshot %d", snapshot.SnapshotID)
+}
+
+// validateDataIntegrity scans the table and validates row count and basic data
+func (s *WriteOperationsTestSuite) validateDataIntegrity(tbl *table.Table, expectedRowCount int64) {
+ scan := tbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err, "Failed to scan table for data integrity check")
+ defer results.Release()
+
+ s.Equal(expectedRowCount, results.NumRows(), "Row count mismatch - expected %d, got %d", expectedRowCount, results.NumRows())
+
+ // Basic data validation - ensure we can read the data
+ s.Equal(3, int(results.NumCols()), "Should have 3 columns (id, data, ts)")
+
+ s.T().Logf("Data integrity validation passed: %d rows, %d columns", results.NumRows(), results.NumCols())
+}
+
+// getSnapshotFiles extracts the list of data file paths from a snapshot for comparison
+func (s *WriteOperationsTestSuite) getSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO) []string {
+ if snapshot == nil {
+ return []string{}
+ }
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var files []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ files = append(files, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for consistent comparison
+ slices.Sort(files)
+
+ return files
+}
+
+// =============================================================================
+// TESTS WITH ENHANCED VALIDATION
+// =============================================================================
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "3",
+ "added-records": "9", // 3 files × 3 rows each
+ })
+ s.validateDataIntegrity(tbl, 9) // 3 files × 3 rows each
+
+ // Capture initial file list for comparison
+ initialFiles := s.getSnapshotFiles(initialSnapshot, s.getFS(tbl))
+
+ // Create new consolidated file
+ consolidatedPath := s.location + "/data/consolidated.parquet"
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // VALIDATE FINAL STATE WITH ENHANCED CHECKS
+ finalSnapshot := newTbl.CurrentSnapshot()
+
+ // Assert that file lists differ before and after the operation
+ finalFiles := s.getSnapshotFiles(finalSnapshot, s.getFS(newTbl))
+ s.NotEqual(initialFiles, finalFiles, "File lists should differ before and after rewrite operation")
+ s.Greater(len(finalFiles), len(initialFiles), "Rewrite operation should result in more files (current behavior)")
+
+ // NOTE: Current ReplaceDataFiles implementation keeps both old and new files
+ // In a full implementation, it should only contain the consolidated file
+ var allFiles []string
+ manifests, err := finalSnapshot.Manifests(s.getFS(newTbl))
+ s.Require().NoError(err)
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(s.getFS(newTbl), false)
+ s.Require().NoError(err)
+ for _, entry := range entries {
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ allFiles = append(allFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Current behavior: keeps both original and consolidated files
+ expectedFiles := append(originalFiles, consolidatedPath)
+ s.validateSnapshotState(finalSnapshot, s.getFS(newTbl), expectedFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ "added-records": "5",
+ })
+
+ // Total data should be correct regardless of file handling
+ s.validateDataIntegrity(newTbl, 5) // consolidated data
+
+ // Verify snapshot progression
+ s.NotEqual(initialSnapshot.SnapshotID, finalSnapshot.SnapshotID, "Should create new snapshot")
+ s.Equal(&initialSnapshot.SnapshotID, finalSnapshot.ParentSnapshotID, "Should reference previous snapshot as parent")
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In full implementation, should only contain consolidated file")
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "2",
+ "added-records": "6", // 2 files × 3 rows each
+ })
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := s.location + "/data/consolidated1.parquet"
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := s.location + "/data/consolidated2.parquet"
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ firstTbl, err1 := tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // VALIDATE FIRST TRANSACTION STATE
+ firstSnapshot := firstTbl.CurrentSnapshot()
+
+ // Current behavior: keeps both original and new files
+ expectedFirstFiles := append(originalFiles, consolidatedPath1)
+ s.validateSnapshotState(firstSnapshot, s.getFS(firstTbl), expectedFirstFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ })
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
+ if err2 != nil {
+ s.T().Logf("Transaction conflict detected: %v", err2)
+ } else {
+ s.T().Log("Transaction completed without conflict - conflict detection may not be fully implemented")
+ }
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In full implementation, should replace files completely")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestOverwriteFiles() {
+ s.Run("OverwriteByPartition", func() {
+ // Note: Partition-specific operations require more complex setup
+ // For now, demonstrate basic overwrite capability
+ ident := table.Identifier{"default", "overwrite_partition_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "1",
+ "added-records": "3", // 1 file × 3 rows
+ })
+ s.validateDataIntegrity(tbl, 3)
+
+ // Capture initial file list for comparison
+ initialFiles := s.getSnapshotFiles(initialSnapshot, s.getFS(tbl))
+
+ // Create new data to simulate partition overwrite
+ mem := memory.DefaultAllocator
+ newData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 10, "data": "new_foo", "ts": 1672531200000000},
+ {"id": 20, "data": "new_bar", "ts": 1672534800000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer newData.Release()
+
+ // Write new file for overwrite
+ newFilePath := s.location + "/data/new_partition_data.parquet"
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, newFilePath, newData)
+
+ // Overwrite with new data
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{newFilePath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // VALIDATE FINAL STATE WITH ENHANCED CHECKS
+ newSnapshot := newTbl.CurrentSnapshot()
+
+ // Assert that file lists differ before and after the operation
+ finalFiles := s.getSnapshotFiles(newSnapshot, s.getFS(newTbl))
+ s.NotEqual(initialFiles, finalFiles, "File lists should differ before and after partition overwrite operation")
+ s.Greater(len(finalFiles), len(initialFiles), "Partition overwrite should result in more files (current behavior)")
+
+ // Current behavior: keeps both original and new files
+ expectedFiles := append(originalFiles, newFilePath)
+ s.validateSnapshotState(newSnapshot, s.getFS(newTbl), expectedFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ "added-records": "2", // new data has 2 rows
+ })
+ s.validateDataIntegrity(newTbl, 2)
+
+ // Verify snapshot progression
+ s.NotEqual(initialSnapshot.SnapshotID, newSnapshot.SnapshotID, "Should create new snapshot")
+ s.Equal(&initialSnapshot.SnapshotID, newSnapshot.ParentSnapshotID, "Should reference previous snapshot as parent")
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In partition overwrite, should only contain new partition data")
+ })
+
+ s.Run("OverwriteWithFilter", func() {
Review Comment:
done 👍🏽
##########
table/table_test.go:
##########
@@ -1202,6 +1202,1059 @@ func TestTableWriting(t *testing.T) {
suite.Run(t, &TableWritingTestSuite{formatVersion: 2})
}
+// WriteOperationsTestSuite provides comprehensive testing for advanced write operations
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+
+ return fs.(iceio.WriteFileIO)
+}
+
+// =============================================================================
+// SNAPSHOT VALIDATION HELPERS
+// =============================================================================
+
+// validateSnapshotFiles checks that the snapshot contains exactly the expected files
+func (s *WriteOperationsTestSuite) validateSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ // Get actual files from snapshot using public API
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var actualFiles []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ actualFiles = append(actualFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for comparison
+ expectedSorted := make([]string, len(expectedFiles))
+ copy(expectedSorted, expectedFiles)
+ slices.Sort(expectedSorted)
+ slices.Sort(actualFiles)
+
+ s.Equal(len(expectedSorted), len(actualFiles), "File count mismatch - expected %d files, got %d", len(expectedSorted), len(actualFiles))
+ s.Equal(expectedSorted, actualFiles, "File paths don't match expected.\nExpected: %v\nActual: %v", expectedSorted, actualFiles)
+
+ s.T().Logf("Snapshot file validation passed: %d files match expected", len(actualFiles))
+}
+
+// validateSnapshotSummary checks operation type and summary properties
+func (s *WriteOperationsTestSuite) validateSnapshotSummary(snapshot *table.Snapshot, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+ s.Require().NotNil(snapshot.Summary, "Snapshot summary should not be nil")
+
+ s.Equal(expectedOp, snapshot.Summary.Operation, "Snapshot operation mismatch")
+
+ if expectedCounts != nil {
+ for key, expectedValue := range expectedCounts {
+ actualValue, exists := snapshot.Summary.Properties[key]
+ s.True(exists, "Summary property %s should exist", key)
+ s.Equal(expectedValue, actualValue, "Summary property %s mismatch - expected %s, got %s", key, expectedValue, actualValue)
+ }
+ }
+
+ s.T().Logf("Snapshot summary validation passed: operation=%s, properties=%d", expectedOp, len(expectedCounts))
+}
+
+// validateManifestStructure validates manifest files and returns total entry count
+func (s *WriteOperationsTestSuite) validateManifestStructure(snapshot *table.Snapshot, fs iceio.IO) int {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+ s.Greater(len(manifests), 0, "Should have at least one manifest")
+
+ totalEntries := 0
+ for i, manifest := range manifests {
+ // Validate manifest is readable
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest %d", i)
+ totalEntries += len(entries)
+
+ // Validate manifest metadata
+ s.Greater(manifest.Length(), int64(0), "Manifest %d should have positive length", i)
+ s.NotEmpty(manifest.FilePath(), "Manifest %d should have valid path", i)
+
+ s.T().Logf("📄 Manifest %d: %s (%d entries, %d bytes)", i, manifest.FilePath(), len(entries), manifest.Length())
+ }
+
+ s.T().Logf("Manifest structure validation passed: %d manifests, %d total entries", len(manifests), totalEntries)
+
+ return totalEntries
+}
+
+// validateSnapshotState performs comprehensive validation of snapshot state
+func (s *WriteOperationsTestSuite) validateSnapshotState(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.T().Logf("🔍 Validating snapshot state (ID: %d)", snapshot.SnapshotID)
+
+ // Validate all components
+ s.validateSnapshotFiles(snapshot, fs, expectedFiles)
+ s.validateSnapshotSummary(snapshot, expectedOp, expectedCounts)
+ entryCount := s.validateManifestStructure(snapshot, fs)
+
+ // Ensure manifest entries match file count
+ s.Equal(len(expectedFiles), entryCount, "Manifest entry count should match expected file count")
+
+ s.T().Logf("🎉 Complete snapshot validation passed for snapshot %d", snapshot.SnapshotID)
+}
+
+// validateDataIntegrity scans the table and validates row count and basic data
+func (s *WriteOperationsTestSuite) validateDataIntegrity(tbl *table.Table, expectedRowCount int64) {
+ scan := tbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err, "Failed to scan table for data integrity check")
+ defer results.Release()
+
+ s.Equal(expectedRowCount, results.NumRows(), "Row count mismatch - expected %d, got %d", expectedRowCount, results.NumRows())
+
+ // Basic data validation - ensure we can read the data
+ s.Equal(3, int(results.NumCols()), "Should have 3 columns (id, data, ts)")
+
+ s.T().Logf("Data integrity validation passed: %d rows, %d columns", results.NumRows(), results.NumCols())
+}
+
+// getSnapshotFiles extracts the list of data file paths from a snapshot for comparison
+func (s *WriteOperationsTestSuite) getSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO) []string {
+ if snapshot == nil {
+ return []string{}
+ }
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var files []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ files = append(files, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for consistent comparison
+ slices.Sort(files)
+
+ return files
+}
+
+// =============================================================================
+// TESTS WITH ENHANCED VALIDATION
+// =============================================================================
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "3",
+ "added-records": "9", // 3 files × 3 rows each
+ })
+ s.validateDataIntegrity(tbl, 9) // 3 files × 3 rows each
+
+ // Capture initial file list for comparison
+ initialFiles := s.getSnapshotFiles(initialSnapshot, s.getFS(tbl))
+
+ // Create new consolidated file
+ consolidatedPath := s.location + "/data/consolidated.parquet"
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // VALIDATE FINAL STATE WITH ENHANCED CHECKS
+ finalSnapshot := newTbl.CurrentSnapshot()
+
+ // Assert that file lists differ before and after the operation
+ finalFiles := s.getSnapshotFiles(finalSnapshot, s.getFS(newTbl))
+ s.NotEqual(initialFiles, finalFiles, "File lists should differ before and after rewrite operation")
+ s.Greater(len(finalFiles), len(initialFiles), "Rewrite operation should result in more files (current behavior)")
+
+ // NOTE: Current ReplaceDataFiles implementation keeps both old and new files
+ // In a full implementation, it should only contain the consolidated file
+ var allFiles []string
+ manifests, err := finalSnapshot.Manifests(s.getFS(newTbl))
+ s.Require().NoError(err)
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(s.getFS(newTbl), false)
+ s.Require().NoError(err)
+ for _, entry := range entries {
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ allFiles = append(allFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Current behavior: keeps both original and consolidated files
+ expectedFiles := append(originalFiles, consolidatedPath)
+ s.validateSnapshotState(finalSnapshot, s.getFS(newTbl), expectedFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ "added-records": "5",
+ })
+
+ // Total data should be correct regardless of file handling
+ s.validateDataIntegrity(newTbl, 5) // consolidated data
+
+ // Verify snapshot progression
+ s.NotEqual(initialSnapshot.SnapshotID, finalSnapshot.SnapshotID, "Should create new snapshot")
+ s.Equal(&initialSnapshot.SnapshotID, finalSnapshot.ParentSnapshotID, "Should reference previous snapshot as parent")
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In full implementation, should only contain consolidated file")
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "2",
+ "added-records": "6", // 2 files × 3 rows each
+ })
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := s.location + "/data/consolidated1.parquet"
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := s.location + "/data/consolidated2.parquet"
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ firstTbl, err1 := tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // VALIDATE FIRST TRANSACTION STATE
+ firstSnapshot := firstTbl.CurrentSnapshot()
+
+ // Current behavior: keeps both original and new files
+ expectedFirstFiles := append(originalFiles, consolidatedPath1)
+ s.validateSnapshotState(firstSnapshot, s.getFS(firstTbl), expectedFirstFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ })
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
+ if err2 != nil {
+ s.T().Logf("Transaction conflict detected: %v", err2)
+ } else {
+ s.T().Log("Transaction completed without conflict - conflict detection may not be fully implemented")
+ }
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In full implementation, should replace files completely")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestOverwriteFiles() {
+ s.Run("OverwriteByPartition", func() {
+ // Note: Partition-specific operations require more complex setup
+ // For now, demonstrate basic overwrite capability
+ ident := table.Identifier{"default", "overwrite_partition_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "1",
+ "added-records": "3", // 1 file × 3 rows
+ })
+ s.validateDataIntegrity(tbl, 3)
+
+ // Capture initial file list for comparison
+ initialFiles := s.getSnapshotFiles(initialSnapshot, s.getFS(tbl))
+
+ // Create new data to simulate partition overwrite
+ mem := memory.DefaultAllocator
+ newData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 10, "data": "new_foo", "ts": 1672531200000000},
+ {"id": 20, "data": "new_bar", "ts": 1672534800000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer newData.Release()
+
+ // Write new file for overwrite
+ newFilePath := s.location + "/data/new_partition_data.parquet"
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, newFilePath, newData)
+
+ // Overwrite with new data
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{newFilePath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // VALIDATE FINAL STATE WITH ENHANCED CHECKS
+ newSnapshot := newTbl.CurrentSnapshot()
+
+ // Assert that file lists differ before and after the operation
+ finalFiles := s.getSnapshotFiles(newSnapshot, s.getFS(newTbl))
+ s.NotEqual(initialFiles, finalFiles, "File lists should differ before and after partition overwrite operation")
+ s.Greater(len(finalFiles), len(initialFiles), "Partition overwrite should result in more files (current behavior)")
+
+ // Current behavior: keeps both original and new files
+ expectedFiles := append(originalFiles, newFilePath)
+ s.validateSnapshotState(newSnapshot, s.getFS(newTbl), expectedFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ "added-records": "2", // new data has 2 rows
+ })
+ s.validateDataIntegrity(newTbl, 2)
+
+ // Verify snapshot progression
+ s.NotEqual(initialSnapshot.SnapshotID, newSnapshot.SnapshotID, "Should create new snapshot")
+ s.Equal(&initialSnapshot.SnapshotID, newSnapshot.ParentSnapshotID, "Should reference previous snapshot as parent")
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In partition overwrite, should only contain new partition data")
+ })
+
+ s.Run("OverwriteWithFilter", func() {
+ // Test overwrite with row-level filters
+ ident := table.Identifier{"default", "overwrite_filter_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "1",
+ "added-records": "3",
+ })
+ s.validateDataIntegrity(tbl, 3)
+
+ // Create replacement data
+ mem := memory.DefaultAllocator
+ replacementData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "updated_foo", "ts": 1672531200000000},
+ {"id": 4, "data": "new_data", "ts": 1672549200000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer replacementData.Release()
+
+ // For now, this demonstrates file-level replacement
+ // True row-level filtering would require delete files
+ consolidatedPath := s.location + "/data/replacement.parquet"
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, replacementData)
+
+ // For this test, we'll demonstrate overwrite by creating a new file
+ // and replacing specific known files rather than discovering them dynamically
+ // In a real scenario, you'd use manifest information to determine which files to replace
+
+ // Capture initial file list for comparison
+ initialFiles := s.getSnapshotFiles(initialSnapshot, s.getFS(tbl))
+
+ // Replace with filtered data - using the known original files from table creation
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // VALIDATE FINAL STATE WITH ENHANCED CHECKS
+ finalSnapshot := newTbl.CurrentSnapshot()
+
+ // Assert that file lists differ before and after the operation
+ finalFiles := s.getSnapshotFiles(finalSnapshot, s.getFS(newTbl))
+ s.NotEqual(initialFiles, finalFiles, "File lists should differ before and after replace operation")
+ s.Greater(len(finalFiles), len(initialFiles), "Replace operation should result in more files (current behavior)")
+
+ // Current behavior: keeps both original and replacement files
+ expectedFiles := append(originalFiles, consolidatedPath)
+ s.validateSnapshotState(finalSnapshot, s.getFS(newTbl), expectedFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ "added-records": "2", // replacement data has 2 rows
+ })
+ s.validateDataIntegrity(newTbl, 2)
+
+ // Verify snapshot progression
+ s.NotEqual(initialSnapshot.SnapshotID, finalSnapshot.SnapshotID, "Should create new snapshot")
+ s.Equal(&initialSnapshot.SnapshotID, finalSnapshot.ParentSnapshotID, "Should reference previous snapshot as parent")
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In filtered overwrite, should replace only matching files")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestPositionDeletes() {
+ s.Run("WritePositionDeleteFiles", func() {
Review Comment:
done 👍🏽
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "laskoviymishka (via GitHub)" <gi...@apache.org>.
laskoviymishka commented on code in PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#discussion_r2231068647
##########
tests/write_operations_test.go:
##########
@@ -0,0 +1,813 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package tests
+
+import (
+ "context"
+ "fmt"
+ "path/filepath"
+ "strconv"
+ "strings"
+ "testing"
+
+ "github.com/apache/arrow-go/v18/arrow"
+ "github.com/apache/arrow-go/v18/arrow/array"
+ "github.com/apache/arrow-go/v18/arrow/memory"
+ "github.com/apache/arrow-go/v18/parquet/pqarrow"
+ "github.com/apache/iceberg-go"
+ iceio "github.com/apache/iceberg-go/io"
+ "github.com/apache/iceberg-go/table"
+ "github.com/google/uuid"
+ "github.com/stretchr/testify/suite"
+)
+
+// Mock catalog implementation for testing
+type mockedCatalog struct{}
+
+func (m *mockedCatalog) LoadTable(ctx context.Context, ident table.Identifier, props iceberg.Properties) (*table.Table, error) {
+ return nil, nil
+}
+
+func (m *mockedCatalog) CommitTable(ctx context.Context, tbl *table.Table, reqs []table.Requirement, updates []table.Update) (table.Metadata, string, error) {
+ bldr, err := table.MetadataBuilderFromBase(tbl.Metadata())
+ if err != nil {
+ return nil, "", err
+ }
+
+ for _, u := range updates {
+ if err := u.Apply(bldr); err != nil {
+ return nil, "", err
+ }
+ }
+
+ meta, err := bldr.Build()
+ if err != nil {
+ return nil, "", err
+ }
+
+ return meta, "", nil
+}
+
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+ return fs.(iceio.WriteFileIO)
+}
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // Create new consolidated file
+ consolidatedPath := fmt.Sprintf("%s/data/consolidated.parquet", s.location)
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify file count reduction
+ snapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(snapshot)
+
+ // Verify data integrity by scanning
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(5), results.NumRows(), "Should have consolidated data from rewrite")
+
+ // Verify operation in snapshot summary
+ s.Equal(table.OpOverwrite, snapshot.Summary.Operation)
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := fmt.Sprintf("%s/data/consolidated1.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := fmt.Sprintf("%s/data/consolidated2.parquet", s.location)
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ _, err1 = tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
+ if err2 != nil {
+ s.T().Logf("Transaction conflict detected: %v", err2)
+ } else {
+ s.T().Log("Transaction completed without conflict - conflict detection may not be fully implemented")
+ }
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestOverwriteFiles() {
+ s.Run("OverwriteByPartition", func() {
+ // Note: Partition-specific operations require more complex setup
+ // For now, demonstrate basic overwrite capability
+ ident := table.Identifier{"default", "overwrite_partition_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ initialSnapshot := tbl.CurrentSnapshot()
+
+ // Create new data to simulate partition overwrite
+ mem := memory.DefaultAllocator
+ newData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 10, "data": "new_foo", "ts": 1672531200000000},
+ {"id": 20, "data": "new_bar", "ts": 1672534800000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer newData.Release()
+
+ // Write new file for overwrite
+ newFilePath := fmt.Sprintf("%s/data/new_partition_data.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, newFilePath, newData)
+
+ // Overwrite with new data
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{newFilePath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify new snapshot
+ newSnapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(newSnapshot)
+ s.NotEqual(initialSnapshot.SnapshotID, newSnapshot.SnapshotID)
+ })
+
+ s.Run("OverwriteWithFilter", func() {
+ // Test overwrite with row-level filters
+ ident := table.Identifier{"default", "overwrite_filter_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create replacement data
+ mem := memory.DefaultAllocator
+ replacementData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "updated_foo", "ts": 1672531200000000},
+ {"id": 4, "data": "new_data", "ts": 1672549200000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer replacementData.Release()
+
+ // For now, this demonstrates file-level replacement
+ // True row-level filtering would require delete files
+ consolidatedPath := fmt.Sprintf("%s/data/replacement.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, replacementData)
+
+ // For this test, we'll demonstrate overwrite by creating a new file
+ // and replacing specific known files rather than discovering them dynamically
+ // In a real scenario, you'd use manifest information to determine which files to replace
+
+ // Replace with filtered data - using the known original files from table creation
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify correct rows are present
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(2), results.NumRows(), "Should have filtered replacement data")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestPositionDeletes() {
+ s.Run("WritePositionDeleteFiles", func() {
+ // Test writing position delete files
+ ident := table.Identifier{"default", "position_delete_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create position delete data that deletes row at position 1 (second row)
+ mem := memory.DefaultAllocator
+
+ // Position delete schema: file_path (string), pos (int32)
+ posDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "file_path", Type: arrow.BinaryTypes.String, Nullable: false},
+ {Name: "pos", Type: arrow.PrimitiveTypes.Int32, Nullable: false},
+ }, nil)
+
+ // Create delete data for the first file, deleting position 1
+ deleteData, err := array.TableFromJSON(mem, posDeleteSchema, []string{
+ fmt.Sprintf(`[{"file_path": "%s", "pos": 1}]`, originalFiles[0]),
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the position delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/pos_deletes.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentPosDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil, // no partition data for unpartitioned
+ deleteData.NumRows(),
+ 1024, // approximate file size
+ )
+ s.Require().NoError(err)
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Verify the delete file was created with correct properties
+ s.Equal(iceberg.EntryContentPosDeletes, deleteFile.ContentType())
+ s.Equal(deleteFilePath, deleteFile.FilePath())
+ s.Equal(int64(1), deleteFile.Count()) // One delete entry
+
+ s.T().Log("Successfully created position delete file")
+ })
+
+ s.Run("ApplyPositionDeletes", func() {
+ // Test reading with position deletes applied
+ ident := table.Identifier{"default", "position_delete_apply_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // The current iceberg-go scanner should be able to read and apply position deletes
+ // when they are properly associated with data files in manifests
+
+ // For now, we'll test the delete file reading functionality
+ mem := memory.DefaultAllocator
+ posDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "file_path", Type: arrow.BinaryTypes.String, Nullable: false},
+ {Name: "pos", Type: arrow.PrimitiveTypes.Int32, Nullable: false},
+ }, nil)
+
+ // Create delete data
+ deleteData, err := array.TableFromJSON(mem, posDeleteSchema, []string{
+ fmt.Sprintf(`[
+ {"file_path": "%s", "pos": 0},
+ {"file_path": "%s", "pos": 2}
+ ]`, originalFiles[0], originalFiles[0]),
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the position delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/pos_deletes_apply.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentPosDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil,
+ deleteData.NumRows(),
+ 1024,
+ )
+ s.Require().NoError(err)
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Test that we can read the delete file and verify its structure
+ // This demonstrates the delete file format is correct
+ s.Equal(int64(2), deleteFile.Count()) // Two delete entries
+ s.Equal(iceberg.EntryContentPosDeletes, deleteFile.ContentType())
+
+ // NOTE: Full integration with table scanning would require updating
+ // manifests to include the delete files, which is a more complex operation
+ // that would need transaction-level support for delete file management
+
+ s.T().Log("Position delete file structure verified - integration with table scanning requires manifest updates")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestEqualityDeletes() {
+ s.Run("WriteEqualityDeleteFiles", func() {
+ // Test writing equality delete files
+ ident := table.Identifier{"default", "equality_delete_test"}
+ tbl, _ := s.createTableWithData(ident, 1)
+
+ // Create equality delete data using subset of table schema
+ // Equality deletes contain the values that should be deleted
+ mem := memory.DefaultAllocator
+
+ // Equality delete schema - subset of table columns used for equality
+ eqDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ }, nil)
+
+ // Create delete data - delete rows where id=2 and data="bar"
+ deleteData, err := array.TableFromJSON(mem, eqDeleteSchema, []string{
+ `[{"id": 2, "data": "bar"}]`,
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the equality delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/eq_deletes.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the equality delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentEqDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil, // no partition data for unpartitioned
+ deleteData.NumRows(),
+ 1024, // approximate file size
+ )
+ s.Require().NoError(err)
+
+ // Set equality field IDs for the columns used in equality comparison
+ // Field IDs from our table schema: id=1, data=2
+ deleteFileBuilder.EqualityFieldIDs([]int{1, 2})
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Verify the delete file was created with correct properties
+ s.Equal(iceberg.EntryContentEqDeletes, deleteFile.ContentType())
+ s.Equal(deleteFilePath, deleteFile.FilePath())
+ s.Equal(int64(1), deleteFile.Count()) // One delete entry
+ s.Equal([]int{1, 2}, deleteFile.EqualityFieldIDs()) // Equality fields
+
+ s.T().Log("Successfully created equality delete file")
+ })
+
+ s.Run("ApplyEqualityDeletes", func() {
+ // Test equality delete file creation with multiple equality conditions
+ ident := table.Identifier{"default", "equality_delete_apply_test"}
+ tbl, _ := s.createTableWithData(ident, 1)
+
+ // Create equality delete data with multiple rows
+ mem := memory.DefaultAllocator
+
+ // Use only the id column for equality (simpler case)
+ eqDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ }, nil)
+
+ // Create delete data - delete rows where id=1 or id=3
+ deleteData, err := array.TableFromJSON(mem, eqDeleteSchema, []string{
+ `[
+ {"id": 1},
+ {"id": 3}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the equality delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/eq_deletes_apply.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the equality delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentEqDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil,
+ deleteData.NumRows(),
+ 1024,
+ )
+ s.Require().NoError(err)
+
+ // Set equality field ID for just the id column
+ deleteFileBuilder.EqualityFieldIDs([]int{1}) // id field
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Verify the delete file properties
+ s.Equal(int64(2), deleteFile.Count()) // Two delete entries
+ s.Equal(iceberg.EntryContentEqDeletes, deleteFile.ContentType())
+ s.Equal([]int{1}, deleteFile.EqualityFieldIDs()) // Only id field for equality
+
+ // NOTE: Full integration with table scanning would require:
+ // 1. Manifest updates to include the delete files
+ // 2. Scanner implementation to apply equality deletes during reading
+ // 3. The current scanner has error handling for equality deletes but
+ // returns "not yet supported" for actual application
+
+ s.T().Log("Equality delete file structure verified - scanner integration shows 'not yet supported'")
Review Comment:
i'm think so, all other aspect in this tests already covered in tests above, and this skip would be vocal here.
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "Elbehery (via GitHub)" <gi...@apache.org>.
Elbehery commented on code in PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#discussion_r2231666673
##########
table/table_test.go:
##########
@@ -1243,8 +2296,8 @@ func TestNullableStructRequiredField(t *testing.T) {
sc, err := table.ArrowSchemaToIcebergWithFreshIDs(arrowSchema, false)
require.NoError(t, err)
- require.NoError(t, cat.CreateNamespace(t.Context(), table.Identifier{"testing"}, nil))
- tbl, err := cat.CreateTable(t.Context(), table.Identifier{"testing", "nullable_struct_required_field"}, sc,
+ require.NoError(t, cat.CreateNamespace(context.Background(), table.Identifier{"testing"}, nil))
Review Comment:
done 👍🏽
##########
table/table_test.go:
##########
@@ -1202,6 +1202,1059 @@ func TestTableWriting(t *testing.T) {
suite.Run(t, &TableWritingTestSuite{formatVersion: 2})
}
+// WriteOperationsTestSuite provides comprehensive testing for advanced write operations
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+
+ return fs.(iceio.WriteFileIO)
+}
+
+// =============================================================================
+// SNAPSHOT VALIDATION HELPERS
+// =============================================================================
+
+// validateSnapshotFiles checks that the snapshot contains exactly the expected files
+func (s *WriteOperationsTestSuite) validateSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ // Get actual files from snapshot using public API
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var actualFiles []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ actualFiles = append(actualFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for comparison
+ expectedSorted := make([]string, len(expectedFiles))
+ copy(expectedSorted, expectedFiles)
+ slices.Sort(expectedSorted)
+ slices.Sort(actualFiles)
+
+ s.Equal(len(expectedSorted), len(actualFiles), "File count mismatch - expected %d files, got %d", len(expectedSorted), len(actualFiles))
+ s.Equal(expectedSorted, actualFiles, "File paths don't match expected.\nExpected: %v\nActual: %v", expectedSorted, actualFiles)
+
+ s.T().Logf("Snapshot file validation passed: %d files match expected", len(actualFiles))
+}
+
+// validateSnapshotSummary checks operation type and summary properties
+func (s *WriteOperationsTestSuite) validateSnapshotSummary(snapshot *table.Snapshot, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+ s.Require().NotNil(snapshot.Summary, "Snapshot summary should not be nil")
+
+ s.Equal(expectedOp, snapshot.Summary.Operation, "Snapshot operation mismatch")
+
+ if expectedCounts != nil {
+ for key, expectedValue := range expectedCounts {
+ actualValue, exists := snapshot.Summary.Properties[key]
+ s.True(exists, "Summary property %s should exist", key)
+ s.Equal(expectedValue, actualValue, "Summary property %s mismatch - expected %s, got %s", key, expectedValue, actualValue)
+ }
+ }
+
+ s.T().Logf("Snapshot summary validation passed: operation=%s, properties=%d", expectedOp, len(expectedCounts))
+}
+
+// validateManifestStructure validates manifest files and returns total entry count
+func (s *WriteOperationsTestSuite) validateManifestStructure(snapshot *table.Snapshot, fs iceio.IO) int {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+ s.Greater(len(manifests), 0, "Should have at least one manifest")
+
+ totalEntries := 0
+ for i, manifest := range manifests {
+ // Validate manifest is readable
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest %d", i)
+ totalEntries += len(entries)
+
+ // Validate manifest metadata
+ s.Greater(manifest.Length(), int64(0), "Manifest %d should have positive length", i)
+ s.NotEmpty(manifest.FilePath(), "Manifest %d should have valid path", i)
+
+ s.T().Logf("📄 Manifest %d: %s (%d entries, %d bytes)", i, manifest.FilePath(), len(entries), manifest.Length())
+ }
+
+ s.T().Logf("Manifest structure validation passed: %d manifests, %d total entries", len(manifests), totalEntries)
+
+ return totalEntries
+}
+
+// validateSnapshotState performs comprehensive validation of snapshot state
+func (s *WriteOperationsTestSuite) validateSnapshotState(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.T().Logf("🔍 Validating snapshot state (ID: %d)", snapshot.SnapshotID)
+
+ // Validate all components
+ s.validateSnapshotFiles(snapshot, fs, expectedFiles)
+ s.validateSnapshotSummary(snapshot, expectedOp, expectedCounts)
+ entryCount := s.validateManifestStructure(snapshot, fs)
+
+ // Ensure manifest entries match file count
+ s.Equal(len(expectedFiles), entryCount, "Manifest entry count should match expected file count")
+
+ s.T().Logf("🎉 Complete snapshot validation passed for snapshot %d", snapshot.SnapshotID)
+}
+
+// validateDataIntegrity scans the table and validates row count and basic data
+func (s *WriteOperationsTestSuite) validateDataIntegrity(tbl *table.Table, expectedRowCount int64) {
+ scan := tbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err, "Failed to scan table for data integrity check")
+ defer results.Release()
+
+ s.Equal(expectedRowCount, results.NumRows(), "Row count mismatch - expected %d, got %d", expectedRowCount, results.NumRows())
+
+ // Basic data validation - ensure we can read the data
+ s.Equal(3, int(results.NumCols()), "Should have 3 columns (id, data, ts)")
+
+ s.T().Logf("Data integrity validation passed: %d rows, %d columns", results.NumRows(), results.NumCols())
+}
+
+// getSnapshotFiles extracts the list of data file paths from a snapshot for comparison
+func (s *WriteOperationsTestSuite) getSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO) []string {
+ if snapshot == nil {
+ return []string{}
+ }
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var files []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ files = append(files, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for consistent comparison
+ slices.Sort(files)
+
+ return files
+}
+
+// =============================================================================
+// TESTS WITH ENHANCED VALIDATION
+// =============================================================================
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "3",
+ "added-records": "9", // 3 files × 3 rows each
+ })
+ s.validateDataIntegrity(tbl, 9) // 3 files × 3 rows each
+
+ // Capture initial file list for comparison
+ initialFiles := s.getSnapshotFiles(initialSnapshot, s.getFS(tbl))
+
+ // Create new consolidated file
+ consolidatedPath := s.location + "/data/consolidated.parquet"
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // VALIDATE FINAL STATE WITH ENHANCED CHECKS
+ finalSnapshot := newTbl.CurrentSnapshot()
+
+ // Assert that file lists differ before and after the operation
+ finalFiles := s.getSnapshotFiles(finalSnapshot, s.getFS(newTbl))
+ s.NotEqual(initialFiles, finalFiles, "File lists should differ before and after rewrite operation")
+ s.Greater(len(finalFiles), len(initialFiles), "Rewrite operation should result in more files (current behavior)")
+
+ // NOTE: Current ReplaceDataFiles implementation keeps both old and new files
+ // In a full implementation, it should only contain the consolidated file
+ var allFiles []string
+ manifests, err := finalSnapshot.Manifests(s.getFS(newTbl))
+ s.Require().NoError(err)
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(s.getFS(newTbl), false)
+ s.Require().NoError(err)
+ for _, entry := range entries {
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ allFiles = append(allFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Current behavior: keeps both original and consolidated files
+ expectedFiles := append(originalFiles, consolidatedPath)
+ s.validateSnapshotState(finalSnapshot, s.getFS(newTbl), expectedFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ "added-records": "5",
+ })
+
+ // Total data should be correct regardless of file handling
+ s.validateDataIntegrity(newTbl, 5) // consolidated data
+
+ // Verify snapshot progression
+ s.NotEqual(initialSnapshot.SnapshotID, finalSnapshot.SnapshotID, "Should create new snapshot")
+ s.Equal(&initialSnapshot.SnapshotID, finalSnapshot.ParentSnapshotID, "Should reference previous snapshot as parent")
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In full implementation, should only contain consolidated file")
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "2",
+ "added-records": "6", // 2 files × 3 rows each
+ })
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := s.location + "/data/consolidated1.parquet"
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := s.location + "/data/consolidated2.parquet"
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ firstTbl, err1 := tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // VALIDATE FIRST TRANSACTION STATE
+ firstSnapshot := firstTbl.CurrentSnapshot()
+
+ // Current behavior: keeps both original and new files
+ expectedFirstFiles := append(originalFiles, consolidatedPath1)
+ s.validateSnapshotState(firstSnapshot, s.getFS(firstTbl), expectedFirstFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ })
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
+ if err2 != nil {
+ s.T().Logf("Transaction conflict detected: %v", err2)
+ } else {
+ s.T().Log("Transaction completed without conflict - conflict detection may not be fully implemented")
+ }
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In full implementation, should replace files completely")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestOverwriteFiles() {
+ s.Run("OverwriteByPartition", func() {
Review Comment:
done 👍🏽
##########
table/table_test.go:
##########
@@ -1202,6 +1202,1059 @@ func TestTableWriting(t *testing.T) {
suite.Run(t, &TableWritingTestSuite{formatVersion: 2})
}
+// WriteOperationsTestSuite provides comprehensive testing for advanced write operations
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+
+ return fs.(iceio.WriteFileIO)
+}
+
+// =============================================================================
+// SNAPSHOT VALIDATION HELPERS
+// =============================================================================
+
+// validateSnapshotFiles checks that the snapshot contains exactly the expected files
+func (s *WriteOperationsTestSuite) validateSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ // Get actual files from snapshot using public API
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var actualFiles []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ actualFiles = append(actualFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for comparison
+ expectedSorted := make([]string, len(expectedFiles))
+ copy(expectedSorted, expectedFiles)
+ slices.Sort(expectedSorted)
+ slices.Sort(actualFiles)
+
+ s.Equal(len(expectedSorted), len(actualFiles), "File count mismatch - expected %d files, got %d", len(expectedSorted), len(actualFiles))
+ s.Equal(expectedSorted, actualFiles, "File paths don't match expected.\nExpected: %v\nActual: %v", expectedSorted, actualFiles)
+
+ s.T().Logf("Snapshot file validation passed: %d files match expected", len(actualFiles))
+}
+
+// validateSnapshotSummary checks operation type and summary properties
+func (s *WriteOperationsTestSuite) validateSnapshotSummary(snapshot *table.Snapshot, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+ s.Require().NotNil(snapshot.Summary, "Snapshot summary should not be nil")
+
+ s.Equal(expectedOp, snapshot.Summary.Operation, "Snapshot operation mismatch")
+
+ if expectedCounts != nil {
+ for key, expectedValue := range expectedCounts {
+ actualValue, exists := snapshot.Summary.Properties[key]
+ s.True(exists, "Summary property %s should exist", key)
+ s.Equal(expectedValue, actualValue, "Summary property %s mismatch - expected %s, got %s", key, expectedValue, actualValue)
+ }
+ }
+
+ s.T().Logf("Snapshot summary validation passed: operation=%s, properties=%d", expectedOp, len(expectedCounts))
+}
+
+// validateManifestStructure validates manifest files and returns total entry count
+func (s *WriteOperationsTestSuite) validateManifestStructure(snapshot *table.Snapshot, fs iceio.IO) int {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+ s.Greater(len(manifests), 0, "Should have at least one manifest")
+
+ totalEntries := 0
+ for i, manifest := range manifests {
+ // Validate manifest is readable
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest %d", i)
+ totalEntries += len(entries)
+
+ // Validate manifest metadata
+ s.Greater(manifest.Length(), int64(0), "Manifest %d should have positive length", i)
+ s.NotEmpty(manifest.FilePath(), "Manifest %d should have valid path", i)
+
+ s.T().Logf("📄 Manifest %d: %s (%d entries, %d bytes)", i, manifest.FilePath(), len(entries), manifest.Length())
+ }
+
+ s.T().Logf("Manifest structure validation passed: %d manifests, %d total entries", len(manifests), totalEntries)
+
+ return totalEntries
+}
+
+// validateSnapshotState performs comprehensive validation of snapshot state
+func (s *WriteOperationsTestSuite) validateSnapshotState(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.T().Logf("🔍 Validating snapshot state (ID: %d)", snapshot.SnapshotID)
+
+ // Validate all components
+ s.validateSnapshotFiles(snapshot, fs, expectedFiles)
+ s.validateSnapshotSummary(snapshot, expectedOp, expectedCounts)
+ entryCount := s.validateManifestStructure(snapshot, fs)
+
+ // Ensure manifest entries match file count
+ s.Equal(len(expectedFiles), entryCount, "Manifest entry count should match expected file count")
+
+ s.T().Logf("🎉 Complete snapshot validation passed for snapshot %d", snapshot.SnapshotID)
+}
+
+// validateDataIntegrity scans the table and validates row count and basic data
+func (s *WriteOperationsTestSuite) validateDataIntegrity(tbl *table.Table, expectedRowCount int64) {
+ scan := tbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err, "Failed to scan table for data integrity check")
+ defer results.Release()
+
+ s.Equal(expectedRowCount, results.NumRows(), "Row count mismatch - expected %d, got %d", expectedRowCount, results.NumRows())
+
+ // Basic data validation - ensure we can read the data
+ s.Equal(3, int(results.NumCols()), "Should have 3 columns (id, data, ts)")
+
+ s.T().Logf("Data integrity validation passed: %d rows, %d columns", results.NumRows(), results.NumCols())
+}
+
+// getSnapshotFiles extracts the list of data file paths from a snapshot for comparison
+func (s *WriteOperationsTestSuite) getSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO) []string {
+ if snapshot == nil {
+ return []string{}
+ }
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var files []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ files = append(files, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for consistent comparison
+ slices.Sort(files)
+
+ return files
+}
+
+// =============================================================================
+// TESTS WITH ENHANCED VALIDATION
+// =============================================================================
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "3",
+ "added-records": "9", // 3 files × 3 rows each
+ })
+ s.validateDataIntegrity(tbl, 9) // 3 files × 3 rows each
+
+ // Capture initial file list for comparison
+ initialFiles := s.getSnapshotFiles(initialSnapshot, s.getFS(tbl))
+
+ // Create new consolidated file
+ consolidatedPath := s.location + "/data/consolidated.parquet"
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // VALIDATE FINAL STATE WITH ENHANCED CHECKS
+ finalSnapshot := newTbl.CurrentSnapshot()
+
+ // Assert that file lists differ before and after the operation
+ finalFiles := s.getSnapshotFiles(finalSnapshot, s.getFS(newTbl))
+ s.NotEqual(initialFiles, finalFiles, "File lists should differ before and after rewrite operation")
+ s.Greater(len(finalFiles), len(initialFiles), "Rewrite operation should result in more files (current behavior)")
+
+ // NOTE: Current ReplaceDataFiles implementation keeps both old and new files
+ // In a full implementation, it should only contain the consolidated file
+ var allFiles []string
+ manifests, err := finalSnapshot.Manifests(s.getFS(newTbl))
+ s.Require().NoError(err)
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(s.getFS(newTbl), false)
+ s.Require().NoError(err)
+ for _, entry := range entries {
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ allFiles = append(allFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Current behavior: keeps both original and consolidated files
+ expectedFiles := append(originalFiles, consolidatedPath)
+ s.validateSnapshotState(finalSnapshot, s.getFS(newTbl), expectedFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ "added-records": "5",
+ })
+
+ // Total data should be correct regardless of file handling
+ s.validateDataIntegrity(newTbl, 5) // consolidated data
+
+ // Verify snapshot progression
+ s.NotEqual(initialSnapshot.SnapshotID, finalSnapshot.SnapshotID, "Should create new snapshot")
+ s.Equal(&initialSnapshot.SnapshotID, finalSnapshot.ParentSnapshotID, "Should reference previous snapshot as parent")
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In full implementation, should only contain consolidated file")
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
Review Comment:
done 👍🏽
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "Elbehery (via GitHub)" <gi...@apache.org>.
Elbehery commented on code in PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#discussion_r2230967395
##########
tests/write_operations_test.go:
##########
@@ -0,0 +1,813 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package tests
+
+import (
+ "context"
+ "fmt"
+ "path/filepath"
+ "strconv"
+ "strings"
+ "testing"
+
+ "github.com/apache/arrow-go/v18/arrow"
+ "github.com/apache/arrow-go/v18/arrow/array"
+ "github.com/apache/arrow-go/v18/arrow/memory"
+ "github.com/apache/arrow-go/v18/parquet/pqarrow"
+ "github.com/apache/iceberg-go"
+ iceio "github.com/apache/iceberg-go/io"
+ "github.com/apache/iceberg-go/table"
+ "github.com/google/uuid"
+ "github.com/stretchr/testify/suite"
+)
+
+// Mock catalog implementation for testing
+type mockedCatalog struct{}
+
+func (m *mockedCatalog) LoadTable(ctx context.Context, ident table.Identifier, props iceberg.Properties) (*table.Table, error) {
+ return nil, nil
+}
+
+func (m *mockedCatalog) CommitTable(ctx context.Context, tbl *table.Table, reqs []table.Requirement, updates []table.Update) (table.Metadata, string, error) {
+ bldr, err := table.MetadataBuilderFromBase(tbl.Metadata())
+ if err != nil {
+ return nil, "", err
+ }
+
+ for _, u := range updates {
+ if err := u.Apply(bldr); err != nil {
+ return nil, "", err
+ }
+ }
+
+ meta, err := bldr.Build()
+ if err != nil {
+ return nil, "", err
+ }
+
+ return meta, "", nil
+}
+
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+ return fs.(iceio.WriteFileIO)
+}
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // Create new consolidated file
+ consolidatedPath := fmt.Sprintf("%s/data/consolidated.parquet", s.location)
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify file count reduction
+ snapshot := newTbl.CurrentSnapshot()
Review Comment:
added in https://github.com/apache/iceberg-go/pull/497/commits/7210f86e198f22a24736a368f46c7edfd161e536
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "laskoviymishka (via GitHub)" <gi...@apache.org>.
laskoviymishka commented on code in PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#discussion_r2231072424
##########
tests/write_operations_test.go:
##########
@@ -0,0 +1,813 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package tests
+
+import (
+ "context"
+ "fmt"
+ "path/filepath"
+ "strconv"
+ "strings"
+ "testing"
+
+ "github.com/apache/arrow-go/v18/arrow"
+ "github.com/apache/arrow-go/v18/arrow/array"
+ "github.com/apache/arrow-go/v18/arrow/memory"
+ "github.com/apache/arrow-go/v18/parquet/pqarrow"
+ "github.com/apache/iceberg-go"
+ iceio "github.com/apache/iceberg-go/io"
+ "github.com/apache/iceberg-go/table"
+ "github.com/google/uuid"
+ "github.com/stretchr/testify/suite"
+)
+
+// Mock catalog implementation for testing
+type mockedCatalog struct{}
+
+func (m *mockedCatalog) LoadTable(ctx context.Context, ident table.Identifier, props iceberg.Properties) (*table.Table, error) {
+ return nil, nil
+}
+
+func (m *mockedCatalog) CommitTable(ctx context.Context, tbl *table.Table, reqs []table.Requirement, updates []table.Update) (table.Metadata, string, error) {
+ bldr, err := table.MetadataBuilderFromBase(tbl.Metadata())
+ if err != nil {
+ return nil, "", err
+ }
+
+ for _, u := range updates {
+ if err := u.Apply(bldr); err != nil {
+ return nil, "", err
+ }
+ }
+
+ meta, err := bldr.Build()
+ if err != nil {
+ return nil, "", err
+ }
+
+ return meta, "", nil
+}
+
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+ return fs.(iceio.WriteFileIO)
+}
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // Create new consolidated file
+ consolidatedPath := fmt.Sprintf("%s/data/consolidated.parquet", s.location)
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify file count reduction
+ snapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(snapshot)
+
+ // Verify data integrity by scanning
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(5), results.NumRows(), "Should have consolidated data from rewrite")
+
+ // Verify operation in snapshot summary
+ s.Equal(table.OpOverwrite, snapshot.Summary.Operation)
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := fmt.Sprintf("%s/data/consolidated1.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := fmt.Sprintf("%s/data/consolidated2.parquet", s.location)
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ _, err1 = tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
Review Comment:
the only change between log and skip is that skip test is not GREEN in CI (it's yellow), so it's more honest.
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "laskoviymishka (via GitHub)" <gi...@apache.org>.
laskoviymishka commented on code in PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#discussion_r2231070934
##########
tests/write_operations_test.go:
##########
@@ -0,0 +1,813 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package tests
+
+import (
+ "context"
+ "fmt"
+ "path/filepath"
+ "strconv"
+ "strings"
+ "testing"
+
+ "github.com/apache/arrow-go/v18/arrow"
+ "github.com/apache/arrow-go/v18/arrow/array"
+ "github.com/apache/arrow-go/v18/arrow/memory"
+ "github.com/apache/arrow-go/v18/parquet/pqarrow"
+ "github.com/apache/iceberg-go"
+ iceio "github.com/apache/iceberg-go/io"
+ "github.com/apache/iceberg-go/table"
+ "github.com/google/uuid"
+ "github.com/stretchr/testify/suite"
+)
+
+// Mock catalog implementation for testing
+type mockedCatalog struct{}
+
+func (m *mockedCatalog) LoadTable(ctx context.Context, ident table.Identifier, props iceberg.Properties) (*table.Table, error) {
+ return nil, nil
+}
+
+func (m *mockedCatalog) CommitTable(ctx context.Context, tbl *table.Table, reqs []table.Requirement, updates []table.Update) (table.Metadata, string, error) {
+ bldr, err := table.MetadataBuilderFromBase(tbl.Metadata())
+ if err != nil {
+ return nil, "", err
+ }
+
+ for _, u := range updates {
+ if err := u.Apply(bldr); err != nil {
+ return nil, "", err
+ }
+ }
+
+ meta, err := bldr.Build()
+ if err != nil {
+ return nil, "", err
+ }
+
+ return meta, "", nil
+}
+
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+ return fs.(iceio.WriteFileIO)
+}
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // Create new consolidated file
+ consolidatedPath := fmt.Sprintf("%s/data/consolidated.parquet", s.location)
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify file count reduction
+ snapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(snapshot)
+
+ // Verify data integrity by scanning
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(5), results.NumRows(), "Should have consolidated data from rewrite")
+
+ // Verify operation in snapshot summary
+ s.Equal(table.OpOverwrite, snapshot.Summary.Operation)
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := fmt.Sprintf("%s/data/consolidated1.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := fmt.Sprintf("%s/data/consolidated2.parquet", s.location)
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ _, err1 = tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
+ if err2 != nil {
+ s.T().Logf("Transaction conflict detected: %v", err2)
+ } else {
+ s.T().Log("Transaction completed without conflict - conflict detection may not be fully implemented")
+ }
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestOverwriteFiles() {
+ s.Run("OverwriteByPartition", func() {
+ // Note: Partition-specific operations require more complex setup
+ // For now, demonstrate basic overwrite capability
+ ident := table.Identifier{"default", "overwrite_partition_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ initialSnapshot := tbl.CurrentSnapshot()
+
+ // Create new data to simulate partition overwrite
+ mem := memory.DefaultAllocator
+ newData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 10, "data": "new_foo", "ts": 1672531200000000},
+ {"id": 20, "data": "new_bar", "ts": 1672534800000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer newData.Release()
+
+ // Write new file for overwrite
+ newFilePath := fmt.Sprintf("%s/data/new_partition_data.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, newFilePath, newData)
+
+ // Overwrite with new data
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{newFilePath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify new snapshot
+ newSnapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(newSnapshot)
+ s.NotEqual(initialSnapshot.SnapshotID, newSnapshot.SnapshotID)
+ })
+
+ s.Run("OverwriteWithFilter", func() {
+ // Test overwrite with row-level filters
+ ident := table.Identifier{"default", "overwrite_filter_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create replacement data
+ mem := memory.DefaultAllocator
+ replacementData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "updated_foo", "ts": 1672531200000000},
+ {"id": 4, "data": "new_data", "ts": 1672549200000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer replacementData.Release()
+
+ // For now, this demonstrates file-level replacement
+ // True row-level filtering would require delete files
+ consolidatedPath := fmt.Sprintf("%s/data/replacement.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, replacementData)
+
+ // For this test, we'll demonstrate overwrite by creating a new file
+ // and replacing specific known files rather than discovering them dynamically
Review Comment:
i think what you can check that lists of files in snapshot differ before and after writes.
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "Elbehery (via GitHub)" <gi...@apache.org>.
Elbehery commented on code in PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#discussion_r2230977492
##########
tests/write_operations_test.go:
##########
@@ -0,0 +1,813 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package tests
+
+import (
+ "context"
+ "fmt"
+ "path/filepath"
+ "strconv"
+ "strings"
+ "testing"
+
+ "github.com/apache/arrow-go/v18/arrow"
+ "github.com/apache/arrow-go/v18/arrow/array"
+ "github.com/apache/arrow-go/v18/arrow/memory"
+ "github.com/apache/arrow-go/v18/parquet/pqarrow"
+ "github.com/apache/iceberg-go"
+ iceio "github.com/apache/iceberg-go/io"
+ "github.com/apache/iceberg-go/table"
+ "github.com/google/uuid"
+ "github.com/stretchr/testify/suite"
+)
+
+// Mock catalog implementation for testing
+type mockedCatalog struct{}
+
+func (m *mockedCatalog) LoadTable(ctx context.Context, ident table.Identifier, props iceberg.Properties) (*table.Table, error) {
+ return nil, nil
+}
+
+func (m *mockedCatalog) CommitTable(ctx context.Context, tbl *table.Table, reqs []table.Requirement, updates []table.Update) (table.Metadata, string, error) {
+ bldr, err := table.MetadataBuilderFromBase(tbl.Metadata())
+ if err != nil {
+ return nil, "", err
+ }
+
+ for _, u := range updates {
+ if err := u.Apply(bldr); err != nil {
+ return nil, "", err
+ }
+ }
+
+ meta, err := bldr.Build()
+ if err != nil {
+ return nil, "", err
+ }
+
+ return meta, "", nil
+}
+
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+ return fs.(iceio.WriteFileIO)
+}
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // Create new consolidated file
+ consolidatedPath := fmt.Sprintf("%s/data/consolidated.parquet", s.location)
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify file count reduction
+ snapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(snapshot)
+
+ // Verify data integrity by scanning
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(5), results.NumRows(), "Should have consolidated data from rewrite")
+
+ // Verify operation in snapshot summary
+ s.Equal(table.OpOverwrite, snapshot.Summary.Operation)
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := fmt.Sprintf("%s/data/consolidated1.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := fmt.Sprintf("%s/data/consolidated2.parquet", s.location)
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ _, err1 = tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
+ if err2 != nil {
+ s.T().Logf("Transaction conflict detected: %v", err2)
+ } else {
+ s.T().Log("Transaction completed without conflict - conflict detection may not be fully implemented")
+ }
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestOverwriteFiles() {
+ s.Run("OverwriteByPartition", func() {
+ // Note: Partition-specific operations require more complex setup
+ // For now, demonstrate basic overwrite capability
+ ident := table.Identifier{"default", "overwrite_partition_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ initialSnapshot := tbl.CurrentSnapshot()
+
+ // Create new data to simulate partition overwrite
+ mem := memory.DefaultAllocator
+ newData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 10, "data": "new_foo", "ts": 1672531200000000},
+ {"id": 20, "data": "new_bar", "ts": 1672534800000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer newData.Release()
+
+ // Write new file for overwrite
+ newFilePath := fmt.Sprintf("%s/data/new_partition_data.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, newFilePath, newData)
+
+ // Overwrite with new data
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{newFilePath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify new snapshot
+ newSnapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(newSnapshot)
+ s.NotEqual(initialSnapshot.SnapshotID, newSnapshot.SnapshotID)
+ })
+
+ s.Run("OverwriteWithFilter", func() {
+ // Test overwrite with row-level filters
+ ident := table.Identifier{"default", "overwrite_filter_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create replacement data
+ mem := memory.DefaultAllocator
+ replacementData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "updated_foo", "ts": 1672531200000000},
+ {"id": 4, "data": "new_data", "ts": 1672549200000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer replacementData.Release()
+
+ // For now, this demonstrates file-level replacement
+ // True row-level filtering would require delete files
+ consolidatedPath := fmt.Sprintf("%s/data/replacement.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, replacementData)
+
+ // For this test, we'll demonstrate overwrite by creating a new file
+ // and replacing specific known files rather than discovering them dynamically
+ // In a real scenario, you'd use manifest information to determine which files to replace
+
+ // Replace with filtered data - using the known original files from table creation
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify correct rows are present
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(2), results.NumRows(), "Should have filtered replacement data")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestPositionDeletes() {
+ s.Run("WritePositionDeleteFiles", func() {
+ // Test writing position delete files
+ ident := table.Identifier{"default", "position_delete_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create position delete data that deletes row at position 1 (second row)
+ mem := memory.DefaultAllocator
+
+ // Position delete schema: file_path (string), pos (int32)
+ posDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "file_path", Type: arrow.BinaryTypes.String, Nullable: false},
+ {Name: "pos", Type: arrow.PrimitiveTypes.Int32, Nullable: false},
+ }, nil)
+
+ // Create delete data for the first file, deleting position 1
+ deleteData, err := array.TableFromJSON(mem, posDeleteSchema, []string{
+ fmt.Sprintf(`[{"file_path": "%s", "pos": 1}]`, originalFiles[0]),
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the position delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/pos_deletes.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentPosDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil, // no partition data for unpartitioned
+ deleteData.NumRows(),
+ 1024, // approximate file size
+ )
+ s.Require().NoError(err)
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Verify the delete file was created with correct properties
+ s.Equal(iceberg.EntryContentPosDeletes, deleteFile.ContentType())
+ s.Equal(deleteFilePath, deleteFile.FilePath())
+ s.Equal(int64(1), deleteFile.Count()) // One delete entry
+
+ s.T().Log("Successfully created position delete file")
+ })
+
+ s.Run("ApplyPositionDeletes", func() {
+ // Test reading with position deletes applied
+ ident := table.Identifier{"default", "position_delete_apply_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // The current iceberg-go scanner should be able to read and apply position deletes
+ // when they are properly associated with data files in manifests
+
+ // For now, we'll test the delete file reading functionality
+ mem := memory.DefaultAllocator
+ posDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "file_path", Type: arrow.BinaryTypes.String, Nullable: false},
+ {Name: "pos", Type: arrow.PrimitiveTypes.Int32, Nullable: false},
+ }, nil)
+
+ // Create delete data
+ deleteData, err := array.TableFromJSON(mem, posDeleteSchema, []string{
+ fmt.Sprintf(`[
+ {"file_path": "%s", "pos": 0},
+ {"file_path": "%s", "pos": 2}
+ ]`, originalFiles[0], originalFiles[0]),
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the position delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/pos_deletes_apply.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentPosDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil,
+ deleteData.NumRows(),
+ 1024,
+ )
+ s.Require().NoError(err)
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Test that we can read the delete file and verify its structure
+ // This demonstrates the delete file format is correct
+ s.Equal(int64(2), deleteFile.Count()) // Two delete entries
+ s.Equal(iceberg.EntryContentPosDeletes, deleteFile.ContentType())
+
+ // NOTE: Full integration with table scanning would require updating
+ // manifests to include the delete files, which is a more complex operation
+ // that would need transaction-level support for delete file management
+
+ s.T().Log("Position delete file structure verified - integration with table scanning requires manifest updates")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestEqualityDeletes() {
+ s.Run("WriteEqualityDeleteFiles", func() {
+ // Test writing equality delete files
+ ident := table.Identifier{"default", "equality_delete_test"}
+ tbl, _ := s.createTableWithData(ident, 1)
+
+ // Create equality delete data using subset of table schema
+ // Equality deletes contain the values that should be deleted
+ mem := memory.DefaultAllocator
+
+ // Equality delete schema - subset of table columns used for equality
+ eqDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ }, nil)
+
+ // Create delete data - delete rows where id=2 and data="bar"
+ deleteData, err := array.TableFromJSON(mem, eqDeleteSchema, []string{
+ `[{"id": 2, "data": "bar"}]`,
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the equality delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/eq_deletes.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the equality delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentEqDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil, // no partition data for unpartitioned
+ deleteData.NumRows(),
+ 1024, // approximate file size
+ )
+ s.Require().NoError(err)
+
+ // Set equality field IDs for the columns used in equality comparison
+ // Field IDs from our table schema: id=1, data=2
+ deleteFileBuilder.EqualityFieldIDs([]int{1, 2})
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Verify the delete file was created with correct properties
+ s.Equal(iceberg.EntryContentEqDeletes, deleteFile.ContentType())
+ s.Equal(deleteFilePath, deleteFile.FilePath())
+ s.Equal(int64(1), deleteFile.Count()) // One delete entry
+ s.Equal([]int{1, 2}, deleteFile.EqualityFieldIDs()) // Equality fields
+
+ s.T().Log("Successfully created equality delete file")
+ })
+
+ s.Run("ApplyEqualityDeletes", func() {
+ // Test equality delete file creation with multiple equality conditions
+ ident := table.Identifier{"default", "equality_delete_apply_test"}
+ tbl, _ := s.createTableWithData(ident, 1)
+
+ // Create equality delete data with multiple rows
+ mem := memory.DefaultAllocator
+
+ // Use only the id column for equality (simpler case)
+ eqDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ }, nil)
+
+ // Create delete data - delete rows where id=1 or id=3
+ deleteData, err := array.TableFromJSON(mem, eqDeleteSchema, []string{
+ `[
+ {"id": 1},
+ {"id": 3}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the equality delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/eq_deletes_apply.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the equality delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentEqDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil,
+ deleteData.NumRows(),
+ 1024,
+ )
+ s.Require().NoError(err)
+
+ // Set equality field ID for just the id column
+ deleteFileBuilder.EqualityFieldIDs([]int{1}) // id field
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Verify the delete file properties
+ s.Equal(int64(2), deleteFile.Count()) // Two delete entries
+ s.Equal(iceberg.EntryContentEqDeletes, deleteFile.ContentType())
+ s.Equal([]int{1}, deleteFile.EqualityFieldIDs()) // Only id field for equality
+
+ // NOTE: Full integration with table scanning would require:
+ // 1. Manifest updates to include the delete files
+ // 2. Scanner implementation to apply equality deletes during reading
+ // 3. The current scanner has error handling for equality deletes but
+ // returns "not yet supported" for actual application
+
+ s.T().Log("Equality delete file structure verified - scanner integration shows 'not yet supported'")
Review Comment:
ditto ? skip whole test ?
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "Elbehery (via GitHub)" <gi...@apache.org>.
Elbehery commented on code in PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#discussion_r2231642498
##########
table/table_test.go:
##########
@@ -1202,6 +1202,1059 @@ func TestTableWriting(t *testing.T) {
suite.Run(t, &TableWritingTestSuite{formatVersion: 2})
}
+// WriteOperationsTestSuite provides comprehensive testing for advanced write operations
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+
+ return fs.(iceio.WriteFileIO)
+}
+
+// =============================================================================
+// SNAPSHOT VALIDATION HELPERS
+// =============================================================================
+
+// validateSnapshotFiles checks that the snapshot contains exactly the expected files
+func (s *WriteOperationsTestSuite) validateSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ // Get actual files from snapshot using public API
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var actualFiles []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ actualFiles = append(actualFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for comparison
+ expectedSorted := make([]string, len(expectedFiles))
+ copy(expectedSorted, expectedFiles)
+ slices.Sort(expectedSorted)
+ slices.Sort(actualFiles)
+
+ s.Equal(len(expectedSorted), len(actualFiles), "File count mismatch - expected %d files, got %d", len(expectedSorted), len(actualFiles))
+ s.Equal(expectedSorted, actualFiles, "File paths don't match expected.\nExpected: %v\nActual: %v", expectedSorted, actualFiles)
+
+ s.T().Logf("Snapshot file validation passed: %d files match expected", len(actualFiles))
+}
+
+// validateSnapshotSummary checks operation type and summary properties
+func (s *WriteOperationsTestSuite) validateSnapshotSummary(snapshot *table.Snapshot, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+ s.Require().NotNil(snapshot.Summary, "Snapshot summary should not be nil")
+
+ s.Equal(expectedOp, snapshot.Summary.Operation, "Snapshot operation mismatch")
+
+ if expectedCounts != nil {
+ for key, expectedValue := range expectedCounts {
+ actualValue, exists := snapshot.Summary.Properties[key]
+ s.True(exists, "Summary property %s should exist", key)
+ s.Equal(expectedValue, actualValue, "Summary property %s mismatch - expected %s, got %s", key, expectedValue, actualValue)
+ }
+ }
+
+ s.T().Logf("Snapshot summary validation passed: operation=%s, properties=%d", expectedOp, len(expectedCounts))
+}
+
+// validateManifestStructure validates manifest files and returns total entry count
+func (s *WriteOperationsTestSuite) validateManifestStructure(snapshot *table.Snapshot, fs iceio.IO) int {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+ s.Greater(len(manifests), 0, "Should have at least one manifest")
+
+ totalEntries := 0
+ for i, manifest := range manifests {
+ // Validate manifest is readable
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest %d", i)
+ totalEntries += len(entries)
+
+ // Validate manifest metadata
+ s.Greater(manifest.Length(), int64(0), "Manifest %d should have positive length", i)
+ s.NotEmpty(manifest.FilePath(), "Manifest %d should have valid path", i)
+
+ s.T().Logf("📄 Manifest %d: %s (%d entries, %d bytes)", i, manifest.FilePath(), len(entries), manifest.Length())
+ }
+
+ s.T().Logf("Manifest structure validation passed: %d manifests, %d total entries", len(manifests), totalEntries)
+
+ return totalEntries
+}
+
+// validateSnapshotState performs comprehensive validation of snapshot state
+func (s *WriteOperationsTestSuite) validateSnapshotState(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.T().Logf("🔍 Validating snapshot state (ID: %d)", snapshot.SnapshotID)
+
+ // Validate all components
+ s.validateSnapshotFiles(snapshot, fs, expectedFiles)
+ s.validateSnapshotSummary(snapshot, expectedOp, expectedCounts)
+ entryCount := s.validateManifestStructure(snapshot, fs)
+
+ // Ensure manifest entries match file count
+ s.Equal(len(expectedFiles), entryCount, "Manifest entry count should match expected file count")
+
+ s.T().Logf("🎉 Complete snapshot validation passed for snapshot %d", snapshot.SnapshotID)
+}
+
+// validateDataIntegrity scans the table and validates row count and basic data
+func (s *WriteOperationsTestSuite) validateDataIntegrity(tbl *table.Table, expectedRowCount int64) {
+ scan := tbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err, "Failed to scan table for data integrity check")
+ defer results.Release()
+
+ s.Equal(expectedRowCount, results.NumRows(), "Row count mismatch - expected %d, got %d", expectedRowCount, results.NumRows())
+
+ // Basic data validation - ensure we can read the data
+ s.Equal(3, int(results.NumCols()), "Should have 3 columns (id, data, ts)")
+
+ s.T().Logf("Data integrity validation passed: %d rows, %d columns", results.NumRows(), results.NumCols())
+}
+
+// getSnapshotFiles extracts the list of data file paths from a snapshot for comparison
+func (s *WriteOperationsTestSuite) getSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO) []string {
+ if snapshot == nil {
+ return []string{}
+ }
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var files []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ files = append(files, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for consistent comparison
+ slices.Sort(files)
+
+ return files
+}
+
+// =============================================================================
+// TESTS WITH ENHANCED VALIDATION
+// =============================================================================
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
Review Comment:
cant get it, this is a sub-test,
which function u mean ?
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "Elbehery (via GitHub)" <gi...@apache.org>.
Elbehery commented on code in PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#discussion_r2230974744
##########
tests/write_operations_test.go:
##########
@@ -0,0 +1,813 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package tests
+
+import (
+ "context"
+ "fmt"
+ "path/filepath"
+ "strconv"
+ "strings"
+ "testing"
+
+ "github.com/apache/arrow-go/v18/arrow"
+ "github.com/apache/arrow-go/v18/arrow/array"
+ "github.com/apache/arrow-go/v18/arrow/memory"
+ "github.com/apache/arrow-go/v18/parquet/pqarrow"
+ "github.com/apache/iceberg-go"
+ iceio "github.com/apache/iceberg-go/io"
+ "github.com/apache/iceberg-go/table"
+ "github.com/google/uuid"
+ "github.com/stretchr/testify/suite"
+)
+
+// Mock catalog implementation for testing
+type mockedCatalog struct{}
+
+func (m *mockedCatalog) LoadTable(ctx context.Context, ident table.Identifier, props iceberg.Properties) (*table.Table, error) {
+ return nil, nil
+}
+
+func (m *mockedCatalog) CommitTable(ctx context.Context, tbl *table.Table, reqs []table.Requirement, updates []table.Update) (table.Metadata, string, error) {
+ bldr, err := table.MetadataBuilderFromBase(tbl.Metadata())
+ if err != nil {
+ return nil, "", err
+ }
+
+ for _, u := range updates {
+ if err := u.Apply(bldr); err != nil {
+ return nil, "", err
+ }
+ }
+
+ meta, err := bldr.Build()
+ if err != nil {
+ return nil, "", err
+ }
+
+ return meta, "", nil
+}
+
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+ return fs.(iceio.WriteFileIO)
+}
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // Create new consolidated file
+ consolidatedPath := fmt.Sprintf("%s/data/consolidated.parquet", s.location)
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify file count reduction
+ snapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(snapshot)
+
+ // Verify data integrity by scanning
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(5), results.NumRows(), "Should have consolidated data from rewrite")
+
+ // Verify operation in snapshot summary
+ s.Equal(table.OpOverwrite, snapshot.Summary.Operation)
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := fmt.Sprintf("%s/data/consolidated1.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := fmt.Sprintf("%s/data/consolidated2.parquet", s.location)
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ _, err1 = tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
+ if err2 != nil {
+ s.T().Logf("Transaction conflict detected: %v", err2)
+ } else {
+ s.T().Log("Transaction completed without conflict - conflict detection may not be fully implemented")
+ }
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestOverwriteFiles() {
+ s.Run("OverwriteByPartition", func() {
+ // Note: Partition-specific operations require more complex setup
+ // For now, demonstrate basic overwrite capability
+ ident := table.Identifier{"default", "overwrite_partition_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ initialSnapshot := tbl.CurrentSnapshot()
+
+ // Create new data to simulate partition overwrite
+ mem := memory.DefaultAllocator
+ newData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 10, "data": "new_foo", "ts": 1672531200000000},
+ {"id": 20, "data": "new_bar", "ts": 1672534800000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer newData.Release()
+
+ // Write new file for overwrite
+ newFilePath := fmt.Sprintf("%s/data/new_partition_data.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, newFilePath, newData)
+
+ // Overwrite with new data
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{newFilePath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify new snapshot
+ newSnapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(newSnapshot)
+ s.NotEqual(initialSnapshot.SnapshotID, newSnapshot.SnapshotID)
+ })
+
+ s.Run("OverwriteWithFilter", func() {
+ // Test overwrite with row-level filters
+ ident := table.Identifier{"default", "overwrite_filter_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create replacement data
+ mem := memory.DefaultAllocator
+ replacementData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "updated_foo", "ts": 1672531200000000},
+ {"id": 4, "data": "new_data", "ts": 1672549200000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer replacementData.Release()
+
+ // For now, this demonstrates file-level replacement
+ // True row-level filtering would require delete files
+ consolidatedPath := fmt.Sprintf("%s/data/replacement.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, replacementData)
+
+ // For this test, we'll demonstrate overwrite by creating a new file
+ // and replacing specific known files rather than discovering them dynamically
Review Comment:
would you kindly suggest a change ?
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "Elbehery (via GitHub)" <gi...@apache.org>.
Elbehery commented on code in PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#discussion_r2230965584
##########
tests/write_operations_test.go:
##########
@@ -0,0 +1,813 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package tests
+
+import (
+ "context"
+ "fmt"
+ "path/filepath"
+ "strconv"
+ "strings"
+ "testing"
+
+ "github.com/apache/arrow-go/v18/arrow"
+ "github.com/apache/arrow-go/v18/arrow/array"
+ "github.com/apache/arrow-go/v18/arrow/memory"
+ "github.com/apache/arrow-go/v18/parquet/pqarrow"
+ "github.com/apache/iceberg-go"
+ iceio "github.com/apache/iceberg-go/io"
+ "github.com/apache/iceberg-go/table"
+ "github.com/google/uuid"
+ "github.com/stretchr/testify/suite"
+)
+
+// Mock catalog implementation for testing
+type mockedCatalog struct{}
+
+func (m *mockedCatalog) LoadTable(ctx context.Context, ident table.Identifier, props iceberg.Properties) (*table.Table, error) {
+ return nil, nil
+}
+
+func (m *mockedCatalog) CommitTable(ctx context.Context, tbl *table.Table, reqs []table.Requirement, updates []table.Update) (table.Metadata, string, error) {
+ bldr, err := table.MetadataBuilderFromBase(tbl.Metadata())
+ if err != nil {
+ return nil, "", err
+ }
+
+ for _, u := range updates {
+ if err := u.Apply(bldr); err != nil {
+ return nil, "", err
+ }
+ }
+
+ meta, err := bldr.Build()
+ if err != nil {
+ return nil, "", err
+ }
+
+ return meta, "", nil
+}
+
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+ return fs.(iceio.WriteFileIO)
+}
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // Create new consolidated file
+ consolidatedPath := fmt.Sprintf("%s/data/consolidated.parquet", s.location)
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify file count reduction
+ snapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(snapshot)
+
+ // Verify data integrity by scanning
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(5), results.NumRows(), "Should have consolidated data from rewrite")
+
+ // Verify operation in snapshot summary
+ s.Equal(table.OpOverwrite, snapshot.Summary.Operation)
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := fmt.Sprintf("%s/data/consolidated1.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := fmt.Sprintf("%s/data/consolidated2.parquet", s.location)
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ _, err1 = tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
Review Comment:
so if i skip, i would skip the whole test, i think currently the comments and logs explain, wdyt ?
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "Elbehery (via GitHub)" <gi...@apache.org>.
Elbehery commented on code in PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#discussion_r2231667315
##########
table/table_test.go:
##########
@@ -1202,6 +1202,1059 @@ func TestTableWriting(t *testing.T) {
suite.Run(t, &TableWritingTestSuite{formatVersion: 2})
}
+// WriteOperationsTestSuite provides comprehensive testing for advanced write operations
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+
+ return fs.(iceio.WriteFileIO)
+}
+
+// =============================================================================
+// SNAPSHOT VALIDATION HELPERS
+// =============================================================================
+
+// validateSnapshotFiles checks that the snapshot contains exactly the expected files
+func (s *WriteOperationsTestSuite) validateSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ // Get actual files from snapshot using public API
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var actualFiles []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ actualFiles = append(actualFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for comparison
+ expectedSorted := make([]string, len(expectedFiles))
+ copy(expectedSorted, expectedFiles)
+ slices.Sort(expectedSorted)
+ slices.Sort(actualFiles)
+
+ s.Equal(len(expectedSorted), len(actualFiles), "File count mismatch - expected %d files, got %d", len(expectedSorted), len(actualFiles))
+ s.Equal(expectedSorted, actualFiles, "File paths don't match expected.\nExpected: %v\nActual: %v", expectedSorted, actualFiles)
+
+ s.T().Logf("Snapshot file validation passed: %d files match expected", len(actualFiles))
+}
+
+// validateSnapshotSummary checks operation type and summary properties
+func (s *WriteOperationsTestSuite) validateSnapshotSummary(snapshot *table.Snapshot, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+ s.Require().NotNil(snapshot.Summary, "Snapshot summary should not be nil")
+
+ s.Equal(expectedOp, snapshot.Summary.Operation, "Snapshot operation mismatch")
+
+ if expectedCounts != nil {
+ for key, expectedValue := range expectedCounts {
+ actualValue, exists := snapshot.Summary.Properties[key]
+ s.True(exists, "Summary property %s should exist", key)
+ s.Equal(expectedValue, actualValue, "Summary property %s mismatch - expected %s, got %s", key, expectedValue, actualValue)
+ }
+ }
+
+ s.T().Logf("Snapshot summary validation passed: operation=%s, properties=%d", expectedOp, len(expectedCounts))
+}
+
+// validateManifestStructure validates manifest files and returns total entry count
+func (s *WriteOperationsTestSuite) validateManifestStructure(snapshot *table.Snapshot, fs iceio.IO) int {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+ s.Greater(len(manifests), 0, "Should have at least one manifest")
+
+ totalEntries := 0
+ for i, manifest := range manifests {
+ // Validate manifest is readable
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest %d", i)
+ totalEntries += len(entries)
+
+ // Validate manifest metadata
+ s.Greater(manifest.Length(), int64(0), "Manifest %d should have positive length", i)
+ s.NotEmpty(manifest.FilePath(), "Manifest %d should have valid path", i)
+
+ s.T().Logf("📄 Manifest %d: %s (%d entries, %d bytes)", i, manifest.FilePath(), len(entries), manifest.Length())
+ }
+
+ s.T().Logf("Manifest structure validation passed: %d manifests, %d total entries", len(manifests), totalEntries)
+
+ return totalEntries
+}
+
+// validateSnapshotState performs comprehensive validation of snapshot state
+func (s *WriteOperationsTestSuite) validateSnapshotState(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.T().Logf("🔍 Validating snapshot state (ID: %d)", snapshot.SnapshotID)
+
+ // Validate all components
+ s.validateSnapshotFiles(snapshot, fs, expectedFiles)
+ s.validateSnapshotSummary(snapshot, expectedOp, expectedCounts)
+ entryCount := s.validateManifestStructure(snapshot, fs)
+
+ // Ensure manifest entries match file count
+ s.Equal(len(expectedFiles), entryCount, "Manifest entry count should match expected file count")
+
+ s.T().Logf("🎉 Complete snapshot validation passed for snapshot %d", snapshot.SnapshotID)
+}
+
+// validateDataIntegrity scans the table and validates row count and basic data
+func (s *WriteOperationsTestSuite) validateDataIntegrity(tbl *table.Table, expectedRowCount int64) {
+ scan := tbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err, "Failed to scan table for data integrity check")
+ defer results.Release()
+
+ s.Equal(expectedRowCount, results.NumRows(), "Row count mismatch - expected %d, got %d", expectedRowCount, results.NumRows())
+
+ // Basic data validation - ensure we can read the data
+ s.Equal(3, int(results.NumCols()), "Should have 3 columns (id, data, ts)")
+
+ s.T().Logf("Data integrity validation passed: %d rows, %d columns", results.NumRows(), results.NumCols())
+}
+
+// getSnapshotFiles extracts the list of data file paths from a snapshot for comparison
+func (s *WriteOperationsTestSuite) getSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO) []string {
+ if snapshot == nil {
+ return []string{}
+ }
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var files []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ files = append(files, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for consistent comparison
+ slices.Sort(files)
+
+ return files
+}
+
+// =============================================================================
+// TESTS WITH ENHANCED VALIDATION
+// =============================================================================
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
Review Comment:
done 👍🏽
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "Elbehery (via GitHub)" <gi...@apache.org>.
Elbehery commented on PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#issuecomment-3119321678
i ran `golanglint run ./...` but no error locally
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "zeroshade (via GitHub)" <gi...@apache.org>.
zeroshade commented on code in PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#discussion_r2231596507
##########
table/table_test.go:
##########
@@ -1202,6 +1202,1059 @@ func TestTableWriting(t *testing.T) {
suite.Run(t, &TableWritingTestSuite{formatVersion: 2})
}
+// WriteOperationsTestSuite provides comprehensive testing for advanced write operations
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+
+ return fs.(iceio.WriteFileIO)
+}
+
+// =============================================================================
+// SNAPSHOT VALIDATION HELPERS
+// =============================================================================
+
+// validateSnapshotFiles checks that the snapshot contains exactly the expected files
+func (s *WriteOperationsTestSuite) validateSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ // Get actual files from snapshot using public API
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var actualFiles []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ actualFiles = append(actualFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for comparison
+ expectedSorted := make([]string, len(expectedFiles))
+ copy(expectedSorted, expectedFiles)
+ slices.Sort(expectedSorted)
+ slices.Sort(actualFiles)
+
+ s.Equal(len(expectedSorted), len(actualFiles), "File count mismatch - expected %d files, got %d", len(expectedSorted), len(actualFiles))
+ s.Equal(expectedSorted, actualFiles, "File paths don't match expected.\nExpected: %v\nActual: %v", expectedSorted, actualFiles)
+
+ s.T().Logf("Snapshot file validation passed: %d files match expected", len(actualFiles))
+}
+
+// validateSnapshotSummary checks operation type and summary properties
+func (s *WriteOperationsTestSuite) validateSnapshotSummary(snapshot *table.Snapshot, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+ s.Require().NotNil(snapshot.Summary, "Snapshot summary should not be nil")
+
+ s.Equal(expectedOp, snapshot.Summary.Operation, "Snapshot operation mismatch")
+
+ if expectedCounts != nil {
+ for key, expectedValue := range expectedCounts {
+ actualValue, exists := snapshot.Summary.Properties[key]
+ s.True(exists, "Summary property %s should exist", key)
+ s.Equal(expectedValue, actualValue, "Summary property %s mismatch - expected %s, got %s", key, expectedValue, actualValue)
+ }
+ }
+
+ s.T().Logf("Snapshot summary validation passed: operation=%s, properties=%d", expectedOp, len(expectedCounts))
+}
+
+// validateManifestStructure validates manifest files and returns total entry count
+func (s *WriteOperationsTestSuite) validateManifestStructure(snapshot *table.Snapshot, fs iceio.IO) int {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+ s.Greater(len(manifests), 0, "Should have at least one manifest")
+
+ totalEntries := 0
+ for i, manifest := range manifests {
+ // Validate manifest is readable
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest %d", i)
+ totalEntries += len(entries)
+
+ // Validate manifest metadata
+ s.Greater(manifest.Length(), int64(0), "Manifest %d should have positive length", i)
+ s.NotEmpty(manifest.FilePath(), "Manifest %d should have valid path", i)
+
+ s.T().Logf("📄 Manifest %d: %s (%d entries, %d bytes)", i, manifest.FilePath(), len(entries), manifest.Length())
+ }
+
+ s.T().Logf("Manifest structure validation passed: %d manifests, %d total entries", len(manifests), totalEntries)
+
+ return totalEntries
+}
+
+// validateSnapshotState performs comprehensive validation of snapshot state
+func (s *WriteOperationsTestSuite) validateSnapshotState(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.T().Logf("🔍 Validating snapshot state (ID: %d)", snapshot.SnapshotID)
+
+ // Validate all components
+ s.validateSnapshotFiles(snapshot, fs, expectedFiles)
+ s.validateSnapshotSummary(snapshot, expectedOp, expectedCounts)
+ entryCount := s.validateManifestStructure(snapshot, fs)
+
+ // Ensure manifest entries match file count
+ s.Equal(len(expectedFiles), entryCount, "Manifest entry count should match expected file count")
+
+ s.T().Logf("🎉 Complete snapshot validation passed for snapshot %d", snapshot.SnapshotID)
+}
+
+// validateDataIntegrity scans the table and validates row count and basic data
+func (s *WriteOperationsTestSuite) validateDataIntegrity(tbl *table.Table, expectedRowCount int64) {
+ scan := tbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err, "Failed to scan table for data integrity check")
+ defer results.Release()
+
+ s.Equal(expectedRowCount, results.NumRows(), "Row count mismatch - expected %d, got %d", expectedRowCount, results.NumRows())
+
+ // Basic data validation - ensure we can read the data
+ s.Equal(3, int(results.NumCols()), "Should have 3 columns (id, data, ts)")
+
+ s.T().Logf("Data integrity validation passed: %d rows, %d columns", results.NumRows(), results.NumCols())
+}
+
+// getSnapshotFiles extracts the list of data file paths from a snapshot for comparison
+func (s *WriteOperationsTestSuite) getSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO) []string {
+ if snapshot == nil {
+ return []string{}
+ }
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var files []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ files = append(files, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for consistent comparison
+ slices.Sort(files)
+
+ return files
+}
+
+// =============================================================================
+// TESTS WITH ENHANCED VALIDATION
+// =============================================================================
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
Review Comment:
you don't need this, the function itself does this
##########
table/table_test.go:
##########
@@ -1202,6 +1202,1059 @@ func TestTableWriting(t *testing.T) {
suite.Run(t, &TableWritingTestSuite{formatVersion: 2})
}
+// WriteOperationsTestSuite provides comprehensive testing for advanced write operations
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+
+ return fs.(iceio.WriteFileIO)
+}
+
+// =============================================================================
+// SNAPSHOT VALIDATION HELPERS
+// =============================================================================
+
+// validateSnapshotFiles checks that the snapshot contains exactly the expected files
+func (s *WriteOperationsTestSuite) validateSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ // Get actual files from snapshot using public API
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var actualFiles []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ actualFiles = append(actualFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for comparison
+ expectedSorted := make([]string, len(expectedFiles))
+ copy(expectedSorted, expectedFiles)
+ slices.Sort(expectedSorted)
+ slices.Sort(actualFiles)
+
+ s.Equal(len(expectedSorted), len(actualFiles), "File count mismatch - expected %d files, got %d", len(expectedSorted), len(actualFiles))
+ s.Equal(expectedSorted, actualFiles, "File paths don't match expected.\nExpected: %v\nActual: %v", expectedSorted, actualFiles)
+
+ s.T().Logf("Snapshot file validation passed: %d files match expected", len(actualFiles))
+}
+
+// validateSnapshotSummary checks operation type and summary properties
+func (s *WriteOperationsTestSuite) validateSnapshotSummary(snapshot *table.Snapshot, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+ s.Require().NotNil(snapshot.Summary, "Snapshot summary should not be nil")
+
+ s.Equal(expectedOp, snapshot.Summary.Operation, "Snapshot operation mismatch")
+
+ if expectedCounts != nil {
+ for key, expectedValue := range expectedCounts {
+ actualValue, exists := snapshot.Summary.Properties[key]
+ s.True(exists, "Summary property %s should exist", key)
+ s.Equal(expectedValue, actualValue, "Summary property %s mismatch - expected %s, got %s", key, expectedValue, actualValue)
+ }
+ }
+
+ s.T().Logf("Snapshot summary validation passed: operation=%s, properties=%d", expectedOp, len(expectedCounts))
+}
+
+// validateManifestStructure validates manifest files and returns total entry count
+func (s *WriteOperationsTestSuite) validateManifestStructure(snapshot *table.Snapshot, fs iceio.IO) int {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+ s.Greater(len(manifests), 0, "Should have at least one manifest")
+
+ totalEntries := 0
+ for i, manifest := range manifests {
+ // Validate manifest is readable
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest %d", i)
+ totalEntries += len(entries)
+
+ // Validate manifest metadata
+ s.Greater(manifest.Length(), int64(0), "Manifest %d should have positive length", i)
+ s.NotEmpty(manifest.FilePath(), "Manifest %d should have valid path", i)
+
+ s.T().Logf("📄 Manifest %d: %s (%d entries, %d bytes)", i, manifest.FilePath(), len(entries), manifest.Length())
+ }
+
+ s.T().Logf("Manifest structure validation passed: %d manifests, %d total entries", len(manifests), totalEntries)
+
+ return totalEntries
+}
+
+// validateSnapshotState performs comprehensive validation of snapshot state
+func (s *WriteOperationsTestSuite) validateSnapshotState(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.T().Logf("🔍 Validating snapshot state (ID: %d)", snapshot.SnapshotID)
+
+ // Validate all components
+ s.validateSnapshotFiles(snapshot, fs, expectedFiles)
+ s.validateSnapshotSummary(snapshot, expectedOp, expectedCounts)
+ entryCount := s.validateManifestStructure(snapshot, fs)
+
+ // Ensure manifest entries match file count
+ s.Equal(len(expectedFiles), entryCount, "Manifest entry count should match expected file count")
+
+ s.T().Logf("🎉 Complete snapshot validation passed for snapshot %d", snapshot.SnapshotID)
+}
+
+// validateDataIntegrity scans the table and validates row count and basic data
+func (s *WriteOperationsTestSuite) validateDataIntegrity(tbl *table.Table, expectedRowCount int64) {
+ scan := tbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err, "Failed to scan table for data integrity check")
+ defer results.Release()
+
+ s.Equal(expectedRowCount, results.NumRows(), "Row count mismatch - expected %d, got %d", expectedRowCount, results.NumRows())
+
+ // Basic data validation - ensure we can read the data
+ s.Equal(3, int(results.NumCols()), "Should have 3 columns (id, data, ts)")
+
+ s.T().Logf("Data integrity validation passed: %d rows, %d columns", results.NumRows(), results.NumCols())
+}
+
+// getSnapshotFiles extracts the list of data file paths from a snapshot for comparison
+func (s *WriteOperationsTestSuite) getSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO) []string {
+ if snapshot == nil {
+ return []string{}
+ }
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var files []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ files = append(files, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for consistent comparison
+ slices.Sort(files)
+
+ return files
+}
+
+// =============================================================================
+// TESTS WITH ENHANCED VALIDATION
+// =============================================================================
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "3",
+ "added-records": "9", // 3 files × 3 rows each
+ })
+ s.validateDataIntegrity(tbl, 9) // 3 files × 3 rows each
+
+ // Capture initial file list for comparison
+ initialFiles := s.getSnapshotFiles(initialSnapshot, s.getFS(tbl))
+
+ // Create new consolidated file
+ consolidatedPath := s.location + "/data/consolidated.parquet"
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // VALIDATE FINAL STATE WITH ENHANCED CHECKS
+ finalSnapshot := newTbl.CurrentSnapshot()
+
+ // Assert that file lists differ before and after the operation
+ finalFiles := s.getSnapshotFiles(finalSnapshot, s.getFS(newTbl))
+ s.NotEqual(initialFiles, finalFiles, "File lists should differ before and after rewrite operation")
+ s.Greater(len(finalFiles), len(initialFiles), "Rewrite operation should result in more files (current behavior)")
+
+ // NOTE: Current ReplaceDataFiles implementation keeps both old and new files
+ // In a full implementation, it should only contain the consolidated file
+ var allFiles []string
+ manifests, err := finalSnapshot.Manifests(s.getFS(newTbl))
+ s.Require().NoError(err)
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(s.getFS(newTbl), false)
+ s.Require().NoError(err)
+ for _, entry := range entries {
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ allFiles = append(allFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Current behavior: keeps both original and consolidated files
+ expectedFiles := append(originalFiles, consolidatedPath)
+ s.validateSnapshotState(finalSnapshot, s.getFS(newTbl), expectedFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ "added-records": "5",
+ })
+
+ // Total data should be correct regardless of file handling
+ s.validateDataIntegrity(newTbl, 5) // consolidated data
+
+ // Verify snapshot progression
+ s.NotEqual(initialSnapshot.SnapshotID, finalSnapshot.SnapshotID, "Should create new snapshot")
+ s.Equal(&initialSnapshot.SnapshotID, finalSnapshot.ParentSnapshotID, "Should reference previous snapshot as parent")
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In full implementation, should only contain consolidated file")
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "2",
+ "added-records": "6", // 2 files × 3 rows each
+ })
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := s.location + "/data/consolidated1.parquet"
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := s.location + "/data/consolidated2.parquet"
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ firstTbl, err1 := tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // VALIDATE FIRST TRANSACTION STATE
+ firstSnapshot := firstTbl.CurrentSnapshot()
+
+ // Current behavior: keeps both original and new files
+ expectedFirstFiles := append(originalFiles, consolidatedPath1)
+ s.validateSnapshotState(firstSnapshot, s.getFS(firstTbl), expectedFirstFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ })
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
+ if err2 != nil {
+ s.T().Logf("Transaction conflict detected: %v", err2)
+ } else {
+ s.T().Log("Transaction completed without conflict - conflict detection may not be fully implemented")
+ }
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In full implementation, should replace files completely")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestOverwriteFiles() {
+ s.Run("OverwriteByPartition", func() {
Review Comment:
make a function `TestOverwriteByPartition` instead
##########
table/table_test.go:
##########
@@ -1202,6 +1202,1059 @@ func TestTableWriting(t *testing.T) {
suite.Run(t, &TableWritingTestSuite{formatVersion: 2})
}
+// WriteOperationsTestSuite provides comprehensive testing for advanced write operations
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+
+ return fs.(iceio.WriteFileIO)
+}
+
+// =============================================================================
+// SNAPSHOT VALIDATION HELPERS
+// =============================================================================
+
+// validateSnapshotFiles checks that the snapshot contains exactly the expected files
+func (s *WriteOperationsTestSuite) validateSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ // Get actual files from snapshot using public API
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var actualFiles []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ actualFiles = append(actualFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for comparison
+ expectedSorted := make([]string, len(expectedFiles))
+ copy(expectedSorted, expectedFiles)
+ slices.Sort(expectedSorted)
+ slices.Sort(actualFiles)
+
+ s.Equal(len(expectedSorted), len(actualFiles), "File count mismatch - expected %d files, got %d", len(expectedSorted), len(actualFiles))
+ s.Equal(expectedSorted, actualFiles, "File paths don't match expected.\nExpected: %v\nActual: %v", expectedSorted, actualFiles)
+
+ s.T().Logf("Snapshot file validation passed: %d files match expected", len(actualFiles))
+}
+
+// validateSnapshotSummary checks operation type and summary properties
+func (s *WriteOperationsTestSuite) validateSnapshotSummary(snapshot *table.Snapshot, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+ s.Require().NotNil(snapshot.Summary, "Snapshot summary should not be nil")
+
+ s.Equal(expectedOp, snapshot.Summary.Operation, "Snapshot operation mismatch")
+
+ if expectedCounts != nil {
+ for key, expectedValue := range expectedCounts {
+ actualValue, exists := snapshot.Summary.Properties[key]
+ s.True(exists, "Summary property %s should exist", key)
+ s.Equal(expectedValue, actualValue, "Summary property %s mismatch - expected %s, got %s", key, expectedValue, actualValue)
+ }
+ }
+
+ s.T().Logf("Snapshot summary validation passed: operation=%s, properties=%d", expectedOp, len(expectedCounts))
+}
+
+// validateManifestStructure validates manifest files and returns total entry count
+func (s *WriteOperationsTestSuite) validateManifestStructure(snapshot *table.Snapshot, fs iceio.IO) int {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+ s.Greater(len(manifests), 0, "Should have at least one manifest")
+
+ totalEntries := 0
+ for i, manifest := range manifests {
+ // Validate manifest is readable
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest %d", i)
+ totalEntries += len(entries)
+
+ // Validate manifest metadata
+ s.Greater(manifest.Length(), int64(0), "Manifest %d should have positive length", i)
+ s.NotEmpty(manifest.FilePath(), "Manifest %d should have valid path", i)
+
+ s.T().Logf("📄 Manifest %d: %s (%d entries, %d bytes)", i, manifest.FilePath(), len(entries), manifest.Length())
+ }
+
+ s.T().Logf("Manifest structure validation passed: %d manifests, %d total entries", len(manifests), totalEntries)
+
+ return totalEntries
+}
+
+// validateSnapshotState performs comprehensive validation of snapshot state
+func (s *WriteOperationsTestSuite) validateSnapshotState(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.T().Logf("🔍 Validating snapshot state (ID: %d)", snapshot.SnapshotID)
+
+ // Validate all components
+ s.validateSnapshotFiles(snapshot, fs, expectedFiles)
+ s.validateSnapshotSummary(snapshot, expectedOp, expectedCounts)
+ entryCount := s.validateManifestStructure(snapshot, fs)
+
+ // Ensure manifest entries match file count
+ s.Equal(len(expectedFiles), entryCount, "Manifest entry count should match expected file count")
+
+ s.T().Logf("🎉 Complete snapshot validation passed for snapshot %d", snapshot.SnapshotID)
+}
+
+// validateDataIntegrity scans the table and validates row count and basic data
+func (s *WriteOperationsTestSuite) validateDataIntegrity(tbl *table.Table, expectedRowCount int64) {
+ scan := tbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err, "Failed to scan table for data integrity check")
+ defer results.Release()
+
+ s.Equal(expectedRowCount, results.NumRows(), "Row count mismatch - expected %d, got %d", expectedRowCount, results.NumRows())
+
+ // Basic data validation - ensure we can read the data
+ s.Equal(3, int(results.NumCols()), "Should have 3 columns (id, data, ts)")
+
+ s.T().Logf("Data integrity validation passed: %d rows, %d columns", results.NumRows(), results.NumCols())
+}
+
+// getSnapshotFiles extracts the list of data file paths from a snapshot for comparison
+func (s *WriteOperationsTestSuite) getSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO) []string {
+ if snapshot == nil {
+ return []string{}
+ }
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var files []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ files = append(files, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for consistent comparison
+ slices.Sort(files)
+
+ return files
+}
+
+// =============================================================================
+// TESTS WITH ENHANCED VALIDATION
+// =============================================================================
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "3",
+ "added-records": "9", // 3 files × 3 rows each
+ })
+ s.validateDataIntegrity(tbl, 9) // 3 files × 3 rows each
+
+ // Capture initial file list for comparison
+ initialFiles := s.getSnapshotFiles(initialSnapshot, s.getFS(tbl))
+
+ // Create new consolidated file
+ consolidatedPath := s.location + "/data/consolidated.parquet"
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // VALIDATE FINAL STATE WITH ENHANCED CHECKS
+ finalSnapshot := newTbl.CurrentSnapshot()
+
+ // Assert that file lists differ before and after the operation
+ finalFiles := s.getSnapshotFiles(finalSnapshot, s.getFS(newTbl))
+ s.NotEqual(initialFiles, finalFiles, "File lists should differ before and after rewrite operation")
+ s.Greater(len(finalFiles), len(initialFiles), "Rewrite operation should result in more files (current behavior)")
+
+ // NOTE: Current ReplaceDataFiles implementation keeps both old and new files
+ // In a full implementation, it should only contain the consolidated file
+ var allFiles []string
+ manifests, err := finalSnapshot.Manifests(s.getFS(newTbl))
+ s.Require().NoError(err)
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(s.getFS(newTbl), false)
+ s.Require().NoError(err)
+ for _, entry := range entries {
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ allFiles = append(allFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Current behavior: keeps both original and consolidated files
+ expectedFiles := append(originalFiles, consolidatedPath)
+ s.validateSnapshotState(finalSnapshot, s.getFS(newTbl), expectedFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ "added-records": "5",
+ })
+
+ // Total data should be correct regardless of file handling
+ s.validateDataIntegrity(newTbl, 5) // consolidated data
+
+ // Verify snapshot progression
+ s.NotEqual(initialSnapshot.SnapshotID, finalSnapshot.SnapshotID, "Should create new snapshot")
+ s.Equal(&initialSnapshot.SnapshotID, finalSnapshot.ParentSnapshotID, "Should reference previous snapshot as parent")
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In full implementation, should only contain consolidated file")
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "2",
+ "added-records": "6", // 2 files × 3 rows each
+ })
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := s.location + "/data/consolidated1.parquet"
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := s.location + "/data/consolidated2.parquet"
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ firstTbl, err1 := tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // VALIDATE FIRST TRANSACTION STATE
+ firstSnapshot := firstTbl.CurrentSnapshot()
+
+ // Current behavior: keeps both original and new files
+ expectedFirstFiles := append(originalFiles, consolidatedPath1)
+ s.validateSnapshotState(firstSnapshot, s.getFS(firstTbl), expectedFirstFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ })
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
+ if err2 != nil {
+ s.T().Logf("Transaction conflict detected: %v", err2)
+ } else {
+ s.T().Log("Transaction completed without conflict - conflict detection may not be fully implemented")
+ }
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In full implementation, should replace files completely")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestOverwriteFiles() {
+ s.Run("OverwriteByPartition", func() {
+ // Note: Partition-specific operations require more complex setup
+ // For now, demonstrate basic overwrite capability
+ ident := table.Identifier{"default", "overwrite_partition_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "1",
+ "added-records": "3", // 1 file × 3 rows
+ })
+ s.validateDataIntegrity(tbl, 3)
+
+ // Capture initial file list for comparison
+ initialFiles := s.getSnapshotFiles(initialSnapshot, s.getFS(tbl))
+
+ // Create new data to simulate partition overwrite
+ mem := memory.DefaultAllocator
+ newData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 10, "data": "new_foo", "ts": 1672531200000000},
+ {"id": 20, "data": "new_bar", "ts": 1672534800000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer newData.Release()
+
+ // Write new file for overwrite
+ newFilePath := s.location + "/data/new_partition_data.parquet"
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, newFilePath, newData)
+
+ // Overwrite with new data
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{newFilePath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // VALIDATE FINAL STATE WITH ENHANCED CHECKS
+ newSnapshot := newTbl.CurrentSnapshot()
+
+ // Assert that file lists differ before and after the operation
+ finalFiles := s.getSnapshotFiles(newSnapshot, s.getFS(newTbl))
+ s.NotEqual(initialFiles, finalFiles, "File lists should differ before and after partition overwrite operation")
+ s.Greater(len(finalFiles), len(initialFiles), "Partition overwrite should result in more files (current behavior)")
+
+ // Current behavior: keeps both original and new files
+ expectedFiles := append(originalFiles, newFilePath)
+ s.validateSnapshotState(newSnapshot, s.getFS(newTbl), expectedFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ "added-records": "2", // new data has 2 rows
+ })
+ s.validateDataIntegrity(newTbl, 2)
+
+ // Verify snapshot progression
+ s.NotEqual(initialSnapshot.SnapshotID, newSnapshot.SnapshotID, "Should create new snapshot")
+ s.Equal(&initialSnapshot.SnapshotID, newSnapshot.ParentSnapshotID, "Should reference previous snapshot as parent")
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In partition overwrite, should only contain new partition data")
+ })
+
+ s.Run("OverwriteWithFilter", func() {
Review Comment:
same thing, make this a separate function
##########
table/table_test.go:
##########
@@ -1202,6 +1202,1059 @@ func TestTableWriting(t *testing.T) {
suite.Run(t, &TableWritingTestSuite{formatVersion: 2})
}
+// WriteOperationsTestSuite provides comprehensive testing for advanced write operations
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+
+ return fs.(iceio.WriteFileIO)
+}
+
+// =============================================================================
+// SNAPSHOT VALIDATION HELPERS
+// =============================================================================
+
+// validateSnapshotFiles checks that the snapshot contains exactly the expected files
+func (s *WriteOperationsTestSuite) validateSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ // Get actual files from snapshot using public API
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var actualFiles []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ actualFiles = append(actualFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for comparison
+ expectedSorted := make([]string, len(expectedFiles))
+ copy(expectedSorted, expectedFiles)
+ slices.Sort(expectedSorted)
+ slices.Sort(actualFiles)
+
+ s.Equal(len(expectedSorted), len(actualFiles), "File count mismatch - expected %d files, got %d", len(expectedSorted), len(actualFiles))
+ s.Equal(expectedSorted, actualFiles, "File paths don't match expected.\nExpected: %v\nActual: %v", expectedSorted, actualFiles)
+
+ s.T().Logf("Snapshot file validation passed: %d files match expected", len(actualFiles))
+}
+
+// validateSnapshotSummary checks operation type and summary properties
+func (s *WriteOperationsTestSuite) validateSnapshotSummary(snapshot *table.Snapshot, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+ s.Require().NotNil(snapshot.Summary, "Snapshot summary should not be nil")
+
+ s.Equal(expectedOp, snapshot.Summary.Operation, "Snapshot operation mismatch")
+
+ if expectedCounts != nil {
+ for key, expectedValue := range expectedCounts {
+ actualValue, exists := snapshot.Summary.Properties[key]
+ s.True(exists, "Summary property %s should exist", key)
+ s.Equal(expectedValue, actualValue, "Summary property %s mismatch - expected %s, got %s", key, expectedValue, actualValue)
+ }
+ }
+
+ s.T().Logf("Snapshot summary validation passed: operation=%s, properties=%d", expectedOp, len(expectedCounts))
+}
+
+// validateManifestStructure validates manifest files and returns total entry count
+func (s *WriteOperationsTestSuite) validateManifestStructure(snapshot *table.Snapshot, fs iceio.IO) int {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+ s.Greater(len(manifests), 0, "Should have at least one manifest")
+
+ totalEntries := 0
+ for i, manifest := range manifests {
+ // Validate manifest is readable
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest %d", i)
+ totalEntries += len(entries)
+
+ // Validate manifest metadata
+ s.Greater(manifest.Length(), int64(0), "Manifest %d should have positive length", i)
+ s.NotEmpty(manifest.FilePath(), "Manifest %d should have valid path", i)
+
+ s.T().Logf("📄 Manifest %d: %s (%d entries, %d bytes)", i, manifest.FilePath(), len(entries), manifest.Length())
+ }
+
+ s.T().Logf("Manifest structure validation passed: %d manifests, %d total entries", len(manifests), totalEntries)
+
+ return totalEntries
+}
+
+// validateSnapshotState performs comprehensive validation of snapshot state
+func (s *WriteOperationsTestSuite) validateSnapshotState(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.T().Logf("🔍 Validating snapshot state (ID: %d)", snapshot.SnapshotID)
+
+ // Validate all components
+ s.validateSnapshotFiles(snapshot, fs, expectedFiles)
+ s.validateSnapshotSummary(snapshot, expectedOp, expectedCounts)
+ entryCount := s.validateManifestStructure(snapshot, fs)
+
+ // Ensure manifest entries match file count
+ s.Equal(len(expectedFiles), entryCount, "Manifest entry count should match expected file count")
+
+ s.T().Logf("🎉 Complete snapshot validation passed for snapshot %d", snapshot.SnapshotID)
+}
+
+// validateDataIntegrity scans the table and validates row count and basic data
+func (s *WriteOperationsTestSuite) validateDataIntegrity(tbl *table.Table, expectedRowCount int64) {
+ scan := tbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err, "Failed to scan table for data integrity check")
+ defer results.Release()
+
+ s.Equal(expectedRowCount, results.NumRows(), "Row count mismatch - expected %d, got %d", expectedRowCount, results.NumRows())
+
+ // Basic data validation - ensure we can read the data
+ s.Equal(3, int(results.NumCols()), "Should have 3 columns (id, data, ts)")
+
+ s.T().Logf("Data integrity validation passed: %d rows, %d columns", results.NumRows(), results.NumCols())
+}
+
+// getSnapshotFiles extracts the list of data file paths from a snapshot for comparison
+func (s *WriteOperationsTestSuite) getSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO) []string {
+ if snapshot == nil {
+ return []string{}
+ }
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var files []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ files = append(files, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for consistent comparison
+ slices.Sort(files)
+
+ return files
+}
+
+// =============================================================================
+// TESTS WITH ENHANCED VALIDATION
+// =============================================================================
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
Review Comment:
I'm confused, this is identical to `TestWriteOptions`, you don't need both of them
##########
table/table_test.go:
##########
@@ -1202,6 +1202,1059 @@ func TestTableWriting(t *testing.T) {
suite.Run(t, &TableWritingTestSuite{formatVersion: 2})
}
+// WriteOperationsTestSuite provides comprehensive testing for advanced write operations
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+
+ return fs.(iceio.WriteFileIO)
+}
+
+// =============================================================================
+// SNAPSHOT VALIDATION HELPERS
+// =============================================================================
+
+// validateSnapshotFiles checks that the snapshot contains exactly the expected files
+func (s *WriteOperationsTestSuite) validateSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ // Get actual files from snapshot using public API
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var actualFiles []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ actualFiles = append(actualFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for comparison
+ expectedSorted := make([]string, len(expectedFiles))
+ copy(expectedSorted, expectedFiles)
+ slices.Sort(expectedSorted)
+ slices.Sort(actualFiles)
+
+ s.Equal(len(expectedSorted), len(actualFiles), "File count mismatch - expected %d files, got %d", len(expectedSorted), len(actualFiles))
+ s.Equal(expectedSorted, actualFiles, "File paths don't match expected.\nExpected: %v\nActual: %v", expectedSorted, actualFiles)
+
+ s.T().Logf("Snapshot file validation passed: %d files match expected", len(actualFiles))
+}
+
+// validateSnapshotSummary checks operation type and summary properties
+func (s *WriteOperationsTestSuite) validateSnapshotSummary(snapshot *table.Snapshot, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+ s.Require().NotNil(snapshot.Summary, "Snapshot summary should not be nil")
+
+ s.Equal(expectedOp, snapshot.Summary.Operation, "Snapshot operation mismatch")
+
+ if expectedCounts != nil {
+ for key, expectedValue := range expectedCounts {
+ actualValue, exists := snapshot.Summary.Properties[key]
+ s.True(exists, "Summary property %s should exist", key)
+ s.Equal(expectedValue, actualValue, "Summary property %s mismatch - expected %s, got %s", key, expectedValue, actualValue)
+ }
+ }
+
+ s.T().Logf("Snapshot summary validation passed: operation=%s, properties=%d", expectedOp, len(expectedCounts))
+}
+
+// validateManifestStructure validates manifest files and returns total entry count
+func (s *WriteOperationsTestSuite) validateManifestStructure(snapshot *table.Snapshot, fs iceio.IO) int {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+ s.Greater(len(manifests), 0, "Should have at least one manifest")
+
+ totalEntries := 0
+ for i, manifest := range manifests {
+ // Validate manifest is readable
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest %d", i)
+ totalEntries += len(entries)
+
+ // Validate manifest metadata
+ s.Greater(manifest.Length(), int64(0), "Manifest %d should have positive length", i)
+ s.NotEmpty(manifest.FilePath(), "Manifest %d should have valid path", i)
+
+ s.T().Logf("📄 Manifest %d: %s (%d entries, %d bytes)", i, manifest.FilePath(), len(entries), manifest.Length())
+ }
+
+ s.T().Logf("Manifest structure validation passed: %d manifests, %d total entries", len(manifests), totalEntries)
+
+ return totalEntries
+}
+
+// validateSnapshotState performs comprehensive validation of snapshot state
+func (s *WriteOperationsTestSuite) validateSnapshotState(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.T().Logf("🔍 Validating snapshot state (ID: %d)", snapshot.SnapshotID)
+
+ // Validate all components
+ s.validateSnapshotFiles(snapshot, fs, expectedFiles)
+ s.validateSnapshotSummary(snapshot, expectedOp, expectedCounts)
+ entryCount := s.validateManifestStructure(snapshot, fs)
+
+ // Ensure manifest entries match file count
+ s.Equal(len(expectedFiles), entryCount, "Manifest entry count should match expected file count")
+
+ s.T().Logf("🎉 Complete snapshot validation passed for snapshot %d", snapshot.SnapshotID)
+}
+
+// validateDataIntegrity scans the table and validates row count and basic data
+func (s *WriteOperationsTestSuite) validateDataIntegrity(tbl *table.Table, expectedRowCount int64) {
+ scan := tbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err, "Failed to scan table for data integrity check")
+ defer results.Release()
+
+ s.Equal(expectedRowCount, results.NumRows(), "Row count mismatch - expected %d, got %d", expectedRowCount, results.NumRows())
+
+ // Basic data validation - ensure we can read the data
+ s.Equal(3, int(results.NumCols()), "Should have 3 columns (id, data, ts)")
+
+ s.T().Logf("Data integrity validation passed: %d rows, %d columns", results.NumRows(), results.NumCols())
+}
+
+// getSnapshotFiles extracts the list of data file paths from a snapshot for comparison
+func (s *WriteOperationsTestSuite) getSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO) []string {
+ if snapshot == nil {
+ return []string{}
+ }
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var files []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ files = append(files, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for consistent comparison
+ slices.Sort(files)
+
+ return files
+}
+
+// =============================================================================
+// TESTS WITH ENHANCED VALIDATION
+// =============================================================================
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "3",
+ "added-records": "9", // 3 files × 3 rows each
+ })
+ s.validateDataIntegrity(tbl, 9) // 3 files × 3 rows each
+
+ // Capture initial file list for comparison
+ initialFiles := s.getSnapshotFiles(initialSnapshot, s.getFS(tbl))
+
+ // Create new consolidated file
+ consolidatedPath := s.location + "/data/consolidated.parquet"
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // VALIDATE FINAL STATE WITH ENHANCED CHECKS
+ finalSnapshot := newTbl.CurrentSnapshot()
+
+ // Assert that file lists differ before and after the operation
+ finalFiles := s.getSnapshotFiles(finalSnapshot, s.getFS(newTbl))
+ s.NotEqual(initialFiles, finalFiles, "File lists should differ before and after rewrite operation")
+ s.Greater(len(finalFiles), len(initialFiles), "Rewrite operation should result in more files (current behavior)")
+
+ // NOTE: Current ReplaceDataFiles implementation keeps both old and new files
+ // In a full implementation, it should only contain the consolidated file
+ var allFiles []string
+ manifests, err := finalSnapshot.Manifests(s.getFS(newTbl))
+ s.Require().NoError(err)
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(s.getFS(newTbl), false)
+ s.Require().NoError(err)
+ for _, entry := range entries {
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ allFiles = append(allFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Current behavior: keeps both original and consolidated files
+ expectedFiles := append(originalFiles, consolidatedPath)
+ s.validateSnapshotState(finalSnapshot, s.getFS(newTbl), expectedFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ "added-records": "5",
+ })
+
+ // Total data should be correct regardless of file handling
+ s.validateDataIntegrity(newTbl, 5) // consolidated data
+
+ // Verify snapshot progression
+ s.NotEqual(initialSnapshot.SnapshotID, finalSnapshot.SnapshotID, "Should create new snapshot")
+ s.Equal(&initialSnapshot.SnapshotID, finalSnapshot.ParentSnapshotID, "Should reference previous snapshot as parent")
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In full implementation, should only contain consolidated file")
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
Review Comment:
make this a separate function named `TestRewriteWithConflictDetection` instead
##########
table/table_test.go:
##########
@@ -1243,8 +2296,8 @@ func TestNullableStructRequiredField(t *testing.T) {
sc, err := table.ArrowSchemaToIcebergWithFreshIDs(arrowSchema, false)
require.NoError(t, err)
- require.NoError(t, cat.CreateNamespace(t.Context(), table.Identifier{"testing"}, nil))
- tbl, err := cat.CreateTable(t.Context(), table.Identifier{"testing", "nullable_struct_required_field"}, sc,
+ require.NoError(t, cat.CreateNamespace(context.Background(), table.Identifier{"testing"}, nil))
Review Comment:
make a variable `ctx := context.Background()` and just reuse that instead
##########
table/table_test.go:
##########
@@ -1202,6 +1202,1059 @@ func TestTableWriting(t *testing.T) {
suite.Run(t, &TableWritingTestSuite{formatVersion: 2})
}
+// WriteOperationsTestSuite provides comprehensive testing for advanced write operations
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+
+ return fs.(iceio.WriteFileIO)
+}
+
+// =============================================================================
+// SNAPSHOT VALIDATION HELPERS
+// =============================================================================
+
+// validateSnapshotFiles checks that the snapshot contains exactly the expected files
+func (s *WriteOperationsTestSuite) validateSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ // Get actual files from snapshot using public API
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var actualFiles []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ actualFiles = append(actualFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for comparison
+ expectedSorted := make([]string, len(expectedFiles))
+ copy(expectedSorted, expectedFiles)
+ slices.Sort(expectedSorted)
+ slices.Sort(actualFiles)
+
+ s.Equal(len(expectedSorted), len(actualFiles), "File count mismatch - expected %d files, got %d", len(expectedSorted), len(actualFiles))
+ s.Equal(expectedSorted, actualFiles, "File paths don't match expected.\nExpected: %v\nActual: %v", expectedSorted, actualFiles)
+
+ s.T().Logf("Snapshot file validation passed: %d files match expected", len(actualFiles))
+}
+
+// validateSnapshotSummary checks operation type and summary properties
+func (s *WriteOperationsTestSuite) validateSnapshotSummary(snapshot *table.Snapshot, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+ s.Require().NotNil(snapshot.Summary, "Snapshot summary should not be nil")
+
+ s.Equal(expectedOp, snapshot.Summary.Operation, "Snapshot operation mismatch")
+
+ if expectedCounts != nil {
+ for key, expectedValue := range expectedCounts {
+ actualValue, exists := snapshot.Summary.Properties[key]
+ s.True(exists, "Summary property %s should exist", key)
+ s.Equal(expectedValue, actualValue, "Summary property %s mismatch - expected %s, got %s", key, expectedValue, actualValue)
+ }
+ }
+
+ s.T().Logf("Snapshot summary validation passed: operation=%s, properties=%d", expectedOp, len(expectedCounts))
+}
+
+// validateManifestStructure validates manifest files and returns total entry count
+func (s *WriteOperationsTestSuite) validateManifestStructure(snapshot *table.Snapshot, fs iceio.IO) int {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+ s.Greater(len(manifests), 0, "Should have at least one manifest")
+
+ totalEntries := 0
+ for i, manifest := range manifests {
+ // Validate manifest is readable
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest %d", i)
+ totalEntries += len(entries)
+
+ // Validate manifest metadata
+ s.Greater(manifest.Length(), int64(0), "Manifest %d should have positive length", i)
+ s.NotEmpty(manifest.FilePath(), "Manifest %d should have valid path", i)
+
+ s.T().Logf("📄 Manifest %d: %s (%d entries, %d bytes)", i, manifest.FilePath(), len(entries), manifest.Length())
+ }
+
+ s.T().Logf("Manifest structure validation passed: %d manifests, %d total entries", len(manifests), totalEntries)
+
+ return totalEntries
+}
+
+// validateSnapshotState performs comprehensive validation of snapshot state
+func (s *WriteOperationsTestSuite) validateSnapshotState(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.T().Logf("🔍 Validating snapshot state (ID: %d)", snapshot.SnapshotID)
+
+ // Validate all components
+ s.validateSnapshotFiles(snapshot, fs, expectedFiles)
+ s.validateSnapshotSummary(snapshot, expectedOp, expectedCounts)
+ entryCount := s.validateManifestStructure(snapshot, fs)
+
+ // Ensure manifest entries match file count
+ s.Equal(len(expectedFiles), entryCount, "Manifest entry count should match expected file count")
+
+ s.T().Logf("🎉 Complete snapshot validation passed for snapshot %d", snapshot.SnapshotID)
+}
+
+// validateDataIntegrity scans the table and validates row count and basic data
+func (s *WriteOperationsTestSuite) validateDataIntegrity(tbl *table.Table, expectedRowCount int64) {
+ scan := tbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err, "Failed to scan table for data integrity check")
+ defer results.Release()
+
+ s.Equal(expectedRowCount, results.NumRows(), "Row count mismatch - expected %d, got %d", expectedRowCount, results.NumRows())
+
+ // Basic data validation - ensure we can read the data
+ s.Equal(3, int(results.NumCols()), "Should have 3 columns (id, data, ts)")
+
+ s.T().Logf("Data integrity validation passed: %d rows, %d columns", results.NumRows(), results.NumCols())
+}
+
+// getSnapshotFiles extracts the list of data file paths from a snapshot for comparison
+func (s *WriteOperationsTestSuite) getSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO) []string {
+ if snapshot == nil {
+ return []string{}
+ }
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var files []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ files = append(files, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for consistent comparison
+ slices.Sort(files)
+
+ return files
+}
+
+// =============================================================================
+// TESTS WITH ENHANCED VALIDATION
+// =============================================================================
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "3",
+ "added-records": "9", // 3 files × 3 rows each
+ })
+ s.validateDataIntegrity(tbl, 9) // 3 files × 3 rows each
+
+ // Capture initial file list for comparison
+ initialFiles := s.getSnapshotFiles(initialSnapshot, s.getFS(tbl))
+
+ // Create new consolidated file
+ consolidatedPath := s.location + "/data/consolidated.parquet"
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // VALIDATE FINAL STATE WITH ENHANCED CHECKS
+ finalSnapshot := newTbl.CurrentSnapshot()
+
+ // Assert that file lists differ before and after the operation
+ finalFiles := s.getSnapshotFiles(finalSnapshot, s.getFS(newTbl))
+ s.NotEqual(initialFiles, finalFiles, "File lists should differ before and after rewrite operation")
+ s.Greater(len(finalFiles), len(initialFiles), "Rewrite operation should result in more files (current behavior)")
+
+ // NOTE: Current ReplaceDataFiles implementation keeps both old and new files
+ // In a full implementation, it should only contain the consolidated file
+ var allFiles []string
+ manifests, err := finalSnapshot.Manifests(s.getFS(newTbl))
+ s.Require().NoError(err)
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(s.getFS(newTbl), false)
+ s.Require().NoError(err)
+ for _, entry := range entries {
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ allFiles = append(allFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Current behavior: keeps both original and consolidated files
+ expectedFiles := append(originalFiles, consolidatedPath)
+ s.validateSnapshotState(finalSnapshot, s.getFS(newTbl), expectedFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ "added-records": "5",
+ })
+
+ // Total data should be correct regardless of file handling
+ s.validateDataIntegrity(newTbl, 5) // consolidated data
+
+ // Verify snapshot progression
+ s.NotEqual(initialSnapshot.SnapshotID, finalSnapshot.SnapshotID, "Should create new snapshot")
+ s.Equal(&initialSnapshot.SnapshotID, finalSnapshot.ParentSnapshotID, "Should reference previous snapshot as parent")
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In full implementation, should only contain consolidated file")
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "2",
+ "added-records": "6", // 2 files × 3 rows each
+ })
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := s.location + "/data/consolidated1.parquet"
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := s.location + "/data/consolidated2.parquet"
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ firstTbl, err1 := tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // VALIDATE FIRST TRANSACTION STATE
+ firstSnapshot := firstTbl.CurrentSnapshot()
+
+ // Current behavior: keeps both original and new files
+ expectedFirstFiles := append(originalFiles, consolidatedPath1)
+ s.validateSnapshotState(firstSnapshot, s.getFS(firstTbl), expectedFirstFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ })
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
+ if err2 != nil {
+ s.T().Logf("Transaction conflict detected: %v", err2)
+ } else {
+ s.T().Log("Transaction completed without conflict - conflict detection may not be fully implemented")
+ }
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In full implementation, should replace files completely")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestOverwriteFiles() {
+ s.Run("OverwriteByPartition", func() {
+ // Note: Partition-specific operations require more complex setup
+ // For now, demonstrate basic overwrite capability
+ ident := table.Identifier{"default", "overwrite_partition_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "1",
+ "added-records": "3", // 1 file × 3 rows
+ })
+ s.validateDataIntegrity(tbl, 3)
+
+ // Capture initial file list for comparison
+ initialFiles := s.getSnapshotFiles(initialSnapshot, s.getFS(tbl))
+
+ // Create new data to simulate partition overwrite
+ mem := memory.DefaultAllocator
+ newData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 10, "data": "new_foo", "ts": 1672531200000000},
+ {"id": 20, "data": "new_bar", "ts": 1672534800000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer newData.Release()
+
+ // Write new file for overwrite
+ newFilePath := s.location + "/data/new_partition_data.parquet"
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, newFilePath, newData)
+
+ // Overwrite with new data
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{newFilePath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // VALIDATE FINAL STATE WITH ENHANCED CHECKS
+ newSnapshot := newTbl.CurrentSnapshot()
+
+ // Assert that file lists differ before and after the operation
+ finalFiles := s.getSnapshotFiles(newSnapshot, s.getFS(newTbl))
+ s.NotEqual(initialFiles, finalFiles, "File lists should differ before and after partition overwrite operation")
+ s.Greater(len(finalFiles), len(initialFiles), "Partition overwrite should result in more files (current behavior)")
+
+ // Current behavior: keeps both original and new files
+ expectedFiles := append(originalFiles, newFilePath)
+ s.validateSnapshotState(newSnapshot, s.getFS(newTbl), expectedFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ "added-records": "2", // new data has 2 rows
+ })
+ s.validateDataIntegrity(newTbl, 2)
+
+ // Verify snapshot progression
+ s.NotEqual(initialSnapshot.SnapshotID, newSnapshot.SnapshotID, "Should create new snapshot")
+ s.Equal(&initialSnapshot.SnapshotID, newSnapshot.ParentSnapshotID, "Should reference previous snapshot as parent")
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In partition overwrite, should only contain new partition data")
+ })
+
+ s.Run("OverwriteWithFilter", func() {
+ // Test overwrite with row-level filters
+ ident := table.Identifier{"default", "overwrite_filter_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // VALIDATE INITIAL STATE
+ initialSnapshot := tbl.CurrentSnapshot()
+ s.validateSnapshotState(initialSnapshot, s.getFS(tbl), originalFiles, table.OpAppend, map[string]string{
+ "added-data-files": "1",
+ "added-records": "3",
+ })
+ s.validateDataIntegrity(tbl, 3)
+
+ // Create replacement data
+ mem := memory.DefaultAllocator
+ replacementData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "updated_foo", "ts": 1672531200000000},
+ {"id": 4, "data": "new_data", "ts": 1672549200000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer replacementData.Release()
+
+ // For now, this demonstrates file-level replacement
+ // True row-level filtering would require delete files
+ consolidatedPath := s.location + "/data/replacement.parquet"
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, replacementData)
+
+ // For this test, we'll demonstrate overwrite by creating a new file
+ // and replacing specific known files rather than discovering them dynamically
+ // In a real scenario, you'd use manifest information to determine which files to replace
+
+ // Capture initial file list for comparison
+ initialFiles := s.getSnapshotFiles(initialSnapshot, s.getFS(tbl))
+
+ // Replace with filtered data - using the known original files from table creation
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // VALIDATE FINAL STATE WITH ENHANCED CHECKS
+ finalSnapshot := newTbl.CurrentSnapshot()
+
+ // Assert that file lists differ before and after the operation
+ finalFiles := s.getSnapshotFiles(finalSnapshot, s.getFS(newTbl))
+ s.NotEqual(initialFiles, finalFiles, "File lists should differ before and after replace operation")
+ s.Greater(len(finalFiles), len(initialFiles), "Replace operation should result in more files (current behavior)")
+
+ // Current behavior: keeps both original and replacement files
+ expectedFiles := append(originalFiles, consolidatedPath)
+ s.validateSnapshotState(finalSnapshot, s.getFS(newTbl), expectedFiles, table.OpOverwrite, map[string]string{
+ "added-data-files": "1",
+ "added-records": "2", // replacement data has 2 rows
+ })
+ s.validateDataIntegrity(newTbl, 2)
+
+ // Verify snapshot progression
+ s.NotEqual(initialSnapshot.SnapshotID, finalSnapshot.SnapshotID, "Should create new snapshot")
+ s.Equal(&initialSnapshot.SnapshotID, finalSnapshot.ParentSnapshotID, "Should reference previous snapshot as parent")
+
+ s.T().Log("NOTE: ReplaceDataFiles currently keeps both old and new files")
+ s.T().Log("EXPECTED: In filtered overwrite, should replace only matching files")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestPositionDeletes() {
+ s.Run("WritePositionDeleteFiles", func() {
Review Comment:
you get the idea, not going to repeat this comment over and over :smile:
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "zeroshade (via GitHub)" <gi...@apache.org>.
zeroshade commented on PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#issuecomment-3119496554
@Elbehery see my comments :)
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "laskoviymishka (via GitHub)" <gi...@apache.org>.
laskoviymishka commented on code in PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#discussion_r2230819011
##########
tests/write_operations_test.go:
##########
@@ -0,0 +1,813 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package tests
+
+import (
+ "context"
+ "fmt"
+ "path/filepath"
+ "strconv"
+ "strings"
+ "testing"
+
+ "github.com/apache/arrow-go/v18/arrow"
+ "github.com/apache/arrow-go/v18/arrow/array"
+ "github.com/apache/arrow-go/v18/arrow/memory"
+ "github.com/apache/arrow-go/v18/parquet/pqarrow"
+ "github.com/apache/iceberg-go"
+ iceio "github.com/apache/iceberg-go/io"
+ "github.com/apache/iceberg-go/table"
+ "github.com/google/uuid"
+ "github.com/stretchr/testify/suite"
+)
+
+// Mock catalog implementation for testing
+type mockedCatalog struct{}
+
+func (m *mockedCatalog) LoadTable(ctx context.Context, ident table.Identifier, props iceberg.Properties) (*table.Table, error) {
+ return nil, nil
+}
+
+func (m *mockedCatalog) CommitTable(ctx context.Context, tbl *table.Table, reqs []table.Requirement, updates []table.Update) (table.Metadata, string, error) {
+ bldr, err := table.MetadataBuilderFromBase(tbl.Metadata())
+ if err != nil {
+ return nil, "", err
+ }
+
+ for _, u := range updates {
+ if err := u.Apply(bldr); err != nil {
+ return nil, "", err
+ }
+ }
+
+ meta, err := bldr.Build()
+ if err != nil {
+ return nil, "", err
+ }
+
+ return meta, "", nil
+}
+
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+ return fs.(iceio.WriteFileIO)
+}
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // Create new consolidated file
+ consolidatedPath := fmt.Sprintf("%s/data/consolidated.parquet", s.location)
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify file count reduction
+ snapshot := newTbl.CurrentSnapshot()
Review Comment:
is it worth to add a check for snapshot state? (i.e. - check that files are the one that you expect to see)
##########
tests/write_operations_test.go:
##########
@@ -0,0 +1,813 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package tests
+
+import (
+ "context"
+ "fmt"
+ "path/filepath"
+ "strconv"
+ "strings"
+ "testing"
+
+ "github.com/apache/arrow-go/v18/arrow"
+ "github.com/apache/arrow-go/v18/arrow/array"
+ "github.com/apache/arrow-go/v18/arrow/memory"
+ "github.com/apache/arrow-go/v18/parquet/pqarrow"
+ "github.com/apache/iceberg-go"
+ iceio "github.com/apache/iceberg-go/io"
+ "github.com/apache/iceberg-go/table"
+ "github.com/google/uuid"
+ "github.com/stretchr/testify/suite"
+)
+
+// Mock catalog implementation for testing
+type mockedCatalog struct{}
+
+func (m *mockedCatalog) LoadTable(ctx context.Context, ident table.Identifier, props iceberg.Properties) (*table.Table, error) {
+ return nil, nil
+}
+
+func (m *mockedCatalog) CommitTable(ctx context.Context, tbl *table.Table, reqs []table.Requirement, updates []table.Update) (table.Metadata, string, error) {
+ bldr, err := table.MetadataBuilderFromBase(tbl.Metadata())
+ if err != nil {
+ return nil, "", err
+ }
+
+ for _, u := range updates {
+ if err := u.Apply(bldr); err != nil {
+ return nil, "", err
+ }
+ }
+
+ meta, err := bldr.Build()
+ if err != nil {
+ return nil, "", err
+ }
+
+ return meta, "", nil
+}
+
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+ return fs.(iceio.WriteFileIO)
+}
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // Create new consolidated file
+ consolidatedPath := fmt.Sprintf("%s/data/consolidated.parquet", s.location)
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify file count reduction
+ snapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(snapshot)
+
+ // Verify data integrity by scanning
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(5), results.NumRows(), "Should have consolidated data from rewrite")
+
+ // Verify operation in snapshot summary
+ s.Equal(table.OpOverwrite, snapshot.Summary.Operation)
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := fmt.Sprintf("%s/data/consolidated1.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := fmt.Sprintf("%s/data/consolidated2.parquet", s.location)
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ _, err1 = tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
Review Comment:
maybe better `s.T().Skip("not yet implemented")`?
##########
tests/write_operations_test.go:
##########
@@ -0,0 +1,813 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package tests
+
+import (
+ "context"
+ "fmt"
+ "path/filepath"
+ "strconv"
+ "strings"
+ "testing"
+
+ "github.com/apache/arrow-go/v18/arrow"
+ "github.com/apache/arrow-go/v18/arrow/array"
+ "github.com/apache/arrow-go/v18/arrow/memory"
+ "github.com/apache/arrow-go/v18/parquet/pqarrow"
+ "github.com/apache/iceberg-go"
+ iceio "github.com/apache/iceberg-go/io"
+ "github.com/apache/iceberg-go/table"
+ "github.com/google/uuid"
+ "github.com/stretchr/testify/suite"
+)
+
+// Mock catalog implementation for testing
+type mockedCatalog struct{}
+
+func (m *mockedCatalog) LoadTable(ctx context.Context, ident table.Identifier, props iceberg.Properties) (*table.Table, error) {
+ return nil, nil
+}
+
+func (m *mockedCatalog) CommitTable(ctx context.Context, tbl *table.Table, reqs []table.Requirement, updates []table.Update) (table.Metadata, string, error) {
+ bldr, err := table.MetadataBuilderFromBase(tbl.Metadata())
+ if err != nil {
+ return nil, "", err
+ }
+
+ for _, u := range updates {
+ if err := u.Apply(bldr); err != nil {
+ return nil, "", err
+ }
+ }
+
+ meta, err := bldr.Build()
+ if err != nil {
+ return nil, "", err
+ }
+
+ return meta, "", nil
+}
+
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+ return fs.(iceio.WriteFileIO)
+}
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // Create new consolidated file
+ consolidatedPath := fmt.Sprintf("%s/data/consolidated.parquet", s.location)
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify file count reduction
+ snapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(snapshot)
+
+ // Verify data integrity by scanning
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(5), results.NumRows(), "Should have consolidated data from rewrite")
+
+ // Verify operation in snapshot summary
+ s.Equal(table.OpOverwrite, snapshot.Summary.Operation)
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := fmt.Sprintf("%s/data/consolidated1.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := fmt.Sprintf("%s/data/consolidated2.parquet", s.location)
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ _, err1 = tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
+ if err2 != nil {
+ s.T().Logf("Transaction conflict detected: %v", err2)
+ } else {
+ s.T().Log("Transaction completed without conflict - conflict detection may not be fully implemented")
+ }
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestOverwriteFiles() {
+ s.Run("OverwriteByPartition", func() {
+ // Note: Partition-specific operations require more complex setup
+ // For now, demonstrate basic overwrite capability
+ ident := table.Identifier{"default", "overwrite_partition_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ initialSnapshot := tbl.CurrentSnapshot()
+
+ // Create new data to simulate partition overwrite
+ mem := memory.DefaultAllocator
+ newData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 10, "data": "new_foo", "ts": 1672531200000000},
+ {"id": 20, "data": "new_bar", "ts": 1672534800000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer newData.Release()
+
+ // Write new file for overwrite
+ newFilePath := fmt.Sprintf("%s/data/new_partition_data.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, newFilePath, newData)
+
+ // Overwrite with new data
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{newFilePath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify new snapshot
+ newSnapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(newSnapshot)
+ s.NotEqual(initialSnapshot.SnapshotID, newSnapshot.SnapshotID)
+ })
+
+ s.Run("OverwriteWithFilter", func() {
+ // Test overwrite with row-level filters
+ ident := table.Identifier{"default", "overwrite_filter_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create replacement data
+ mem := memory.DefaultAllocator
+ replacementData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "updated_foo", "ts": 1672531200000000},
+ {"id": 4, "data": "new_data", "ts": 1672549200000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer replacementData.Release()
+
+ // For now, this demonstrates file-level replacement
+ // True row-level filtering would require delete files
+ consolidatedPath := fmt.Sprintf("%s/data/replacement.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, replacementData)
+
+ // For this test, we'll demonstrate overwrite by creating a new file
+ // and replacing specific known files rather than discovering them dynamically
+ // In a real scenario, you'd use manifest information to determine which files to replace
+
+ // Replace with filtered data - using the known original files from table creation
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify correct rows are present
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(2), results.NumRows(), "Should have filtered replacement data")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestPositionDeletes() {
+ s.Run("WritePositionDeleteFiles", func() {
+ // Test writing position delete files
+ ident := table.Identifier{"default", "position_delete_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create position delete data that deletes row at position 1 (second row)
+ mem := memory.DefaultAllocator
+
+ // Position delete schema: file_path (string), pos (int32)
+ posDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "file_path", Type: arrow.BinaryTypes.String, Nullable: false},
+ {Name: "pos", Type: arrow.PrimitiveTypes.Int32, Nullable: false},
+ }, nil)
+
+ // Create delete data for the first file, deleting position 1
+ deleteData, err := array.TableFromJSON(mem, posDeleteSchema, []string{
+ fmt.Sprintf(`[{"file_path": "%s", "pos": 1}]`, originalFiles[0]),
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the position delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/pos_deletes.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentPosDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil, // no partition data for unpartitioned
+ deleteData.NumRows(),
+ 1024, // approximate file size
+ )
+ s.Require().NoError(err)
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Verify the delete file was created with correct properties
+ s.Equal(iceberg.EntryContentPosDeletes, deleteFile.ContentType())
+ s.Equal(deleteFilePath, deleteFile.FilePath())
+ s.Equal(int64(1), deleteFile.Count()) // One delete entry
+
+ s.T().Log("Successfully created position delete file")
+ })
+
+ s.Run("ApplyPositionDeletes", func() {
+ // Test reading with position deletes applied
+ ident := table.Identifier{"default", "position_delete_apply_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // The current iceberg-go scanner should be able to read and apply position deletes
+ // when they are properly associated with data files in manifests
+
+ // For now, we'll test the delete file reading functionality
+ mem := memory.DefaultAllocator
+ posDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "file_path", Type: arrow.BinaryTypes.String, Nullable: false},
+ {Name: "pos", Type: arrow.PrimitiveTypes.Int32, Nullable: false},
+ }, nil)
+
+ // Create delete data
+ deleteData, err := array.TableFromJSON(mem, posDeleteSchema, []string{
+ fmt.Sprintf(`[
+ {"file_path": "%s", "pos": 0},
+ {"file_path": "%s", "pos": 2}
+ ]`, originalFiles[0], originalFiles[0]),
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the position delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/pos_deletes_apply.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentPosDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil,
+ deleteData.NumRows(),
+ 1024,
+ )
+ s.Require().NoError(err)
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Test that we can read the delete file and verify its structure
+ // This demonstrates the delete file format is correct
+ s.Equal(int64(2), deleteFile.Count()) // Two delete entries
+ s.Equal(iceberg.EntryContentPosDeletes, deleteFile.ContentType())
+
+ // NOTE: Full integration with table scanning would require updating
+ // manifests to include the delete files, which is a more complex operation
+ // that would need transaction-level support for delete file management
+
+ s.T().Log("Position delete file structure verified - integration with table scanning requires manifest updates")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestEqualityDeletes() {
+ s.Run("WriteEqualityDeleteFiles", func() {
+ // Test writing equality delete files
+ ident := table.Identifier{"default", "equality_delete_test"}
+ tbl, _ := s.createTableWithData(ident, 1)
+
+ // Create equality delete data using subset of table schema
+ // Equality deletes contain the values that should be deleted
+ mem := memory.DefaultAllocator
+
+ // Equality delete schema - subset of table columns used for equality
+ eqDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ }, nil)
+
+ // Create delete data - delete rows where id=2 and data="bar"
+ deleteData, err := array.TableFromJSON(mem, eqDeleteSchema, []string{
+ `[{"id": 2, "data": "bar"}]`,
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the equality delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/eq_deletes.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the equality delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentEqDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil, // no partition data for unpartitioned
+ deleteData.NumRows(),
+ 1024, // approximate file size
+ )
+ s.Require().NoError(err)
+
+ // Set equality field IDs for the columns used in equality comparison
+ // Field IDs from our table schema: id=1, data=2
+ deleteFileBuilder.EqualityFieldIDs([]int{1, 2})
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Verify the delete file was created with correct properties
+ s.Equal(iceberg.EntryContentEqDeletes, deleteFile.ContentType())
+ s.Equal(deleteFilePath, deleteFile.FilePath())
+ s.Equal(int64(1), deleteFile.Count()) // One delete entry
+ s.Equal([]int{1, 2}, deleteFile.EqualityFieldIDs()) // Equality fields
+
+ s.T().Log("Successfully created equality delete file")
+ })
+
+ s.Run("ApplyEqualityDeletes", func() {
+ // Test equality delete file creation with multiple equality conditions
+ ident := table.Identifier{"default", "equality_delete_apply_test"}
+ tbl, _ := s.createTableWithData(ident, 1)
+
+ // Create equality delete data with multiple rows
+ mem := memory.DefaultAllocator
+
+ // Use only the id column for equality (simpler case)
+ eqDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ }, nil)
+
+ // Create delete data - delete rows where id=1 or id=3
+ deleteData, err := array.TableFromJSON(mem, eqDeleteSchema, []string{
+ `[
+ {"id": 1},
+ {"id": 3}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the equality delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/eq_deletes_apply.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the equality delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentEqDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil,
+ deleteData.NumRows(),
+ 1024,
+ )
+ s.Require().NoError(err)
+
+ // Set equality field ID for just the id column
+ deleteFileBuilder.EqualityFieldIDs([]int{1}) // id field
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Verify the delete file properties
+ s.Equal(int64(2), deleteFile.Count()) // Two delete entries
+ s.Equal(iceberg.EntryContentEqDeletes, deleteFile.ContentType())
+ s.Equal([]int{1}, deleteFile.EqualityFieldIDs()) // Only id field for equality
+
+ // NOTE: Full integration with table scanning would require:
+ // 1. Manifest updates to include the delete files
+ // 2. Scanner implementation to apply equality deletes during reading
+ // 3. The current scanner has error handling for equality deletes but
+ // returns "not yet supported" for actual application
+
+ s.T().Log("Equality delete file structure verified - scanner integration shows 'not yet supported'")
Review Comment:
same as above
##########
tests/write_operations_test.go:
##########
@@ -0,0 +1,813 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package tests
+
+import (
+ "context"
+ "fmt"
+ "path/filepath"
+ "strconv"
+ "strings"
+ "testing"
+
+ "github.com/apache/arrow-go/v18/arrow"
+ "github.com/apache/arrow-go/v18/arrow/array"
+ "github.com/apache/arrow-go/v18/arrow/memory"
+ "github.com/apache/arrow-go/v18/parquet/pqarrow"
+ "github.com/apache/iceberg-go"
+ iceio "github.com/apache/iceberg-go/io"
+ "github.com/apache/iceberg-go/table"
+ "github.com/google/uuid"
+ "github.com/stretchr/testify/suite"
+)
+
+// Mock catalog implementation for testing
+type mockedCatalog struct{}
+
+func (m *mockedCatalog) LoadTable(ctx context.Context, ident table.Identifier, props iceberg.Properties) (*table.Table, error) {
+ return nil, nil
+}
+
+func (m *mockedCatalog) CommitTable(ctx context.Context, tbl *table.Table, reqs []table.Requirement, updates []table.Update) (table.Metadata, string, error) {
+ bldr, err := table.MetadataBuilderFromBase(tbl.Metadata())
+ if err != nil {
+ return nil, "", err
+ }
+
+ for _, u := range updates {
+ if err := u.Apply(bldr); err != nil {
+ return nil, "", err
+ }
+ }
+
+ meta, err := bldr.Build()
+ if err != nil {
+ return nil, "", err
+ }
+
+ return meta, "", nil
+}
+
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+ return fs.(iceio.WriteFileIO)
+}
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // Create new consolidated file
+ consolidatedPath := fmt.Sprintf("%s/data/consolidated.parquet", s.location)
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify file count reduction
+ snapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(snapshot)
+
+ // Verify data integrity by scanning
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(5), results.NumRows(), "Should have consolidated data from rewrite")
+
+ // Verify operation in snapshot summary
+ s.Equal(table.OpOverwrite, snapshot.Summary.Operation)
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := fmt.Sprintf("%s/data/consolidated1.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := fmt.Sprintf("%s/data/consolidated2.parquet", s.location)
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ _, err1 = tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
+ if err2 != nil {
+ s.T().Logf("Transaction conflict detected: %v", err2)
+ } else {
+ s.T().Log("Transaction completed without conflict - conflict detection may not be fully implemented")
+ }
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestOverwriteFiles() {
+ s.Run("OverwriteByPartition", func() {
+ // Note: Partition-specific operations require more complex setup
+ // For now, demonstrate basic overwrite capability
+ ident := table.Identifier{"default", "overwrite_partition_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ initialSnapshot := tbl.CurrentSnapshot()
+
+ // Create new data to simulate partition overwrite
+ mem := memory.DefaultAllocator
+ newData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 10, "data": "new_foo", "ts": 1672531200000000},
+ {"id": 20, "data": "new_bar", "ts": 1672534800000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer newData.Release()
+
+ // Write new file for overwrite
+ newFilePath := fmt.Sprintf("%s/data/new_partition_data.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, newFilePath, newData)
+
+ // Overwrite with new data
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{newFilePath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify new snapshot
+ newSnapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(newSnapshot)
+ s.NotEqual(initialSnapshot.SnapshotID, newSnapshot.SnapshotID)
+ })
+
+ s.Run("OverwriteWithFilter", func() {
+ // Test overwrite with row-level filters
+ ident := table.Identifier{"default", "overwrite_filter_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create replacement data
+ mem := memory.DefaultAllocator
+ replacementData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "updated_foo", "ts": 1672531200000000},
+ {"id": 4, "data": "new_data", "ts": 1672549200000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer replacementData.Release()
+
+ // For now, this demonstrates file-level replacement
+ // True row-level filtering would require delete files
+ consolidatedPath := fmt.Sprintf("%s/data/replacement.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, replacementData)
+
+ // For this test, we'll demonstrate overwrite by creating a new file
+ // and replacing specific known files rather than discovering them dynamically
Review Comment:
need an assertion of this row
##########
tests/write_operations_test.go:
##########
@@ -0,0 +1,813 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package tests
+
+import (
+ "context"
+ "fmt"
+ "path/filepath"
+ "strconv"
+ "strings"
+ "testing"
+
+ "github.com/apache/arrow-go/v18/arrow"
+ "github.com/apache/arrow-go/v18/arrow/array"
+ "github.com/apache/arrow-go/v18/arrow/memory"
+ "github.com/apache/arrow-go/v18/parquet/pqarrow"
+ "github.com/apache/iceberg-go"
+ iceio "github.com/apache/iceberg-go/io"
+ "github.com/apache/iceberg-go/table"
+ "github.com/google/uuid"
+ "github.com/stretchr/testify/suite"
+)
+
+// Mock catalog implementation for testing
+type mockedCatalog struct{}
+
+func (m *mockedCatalog) LoadTable(ctx context.Context, ident table.Identifier, props iceberg.Properties) (*table.Table, error) {
+ return nil, nil
+}
+
+func (m *mockedCatalog) CommitTable(ctx context.Context, tbl *table.Table, reqs []table.Requirement, updates []table.Update) (table.Metadata, string, error) {
+ bldr, err := table.MetadataBuilderFromBase(tbl.Metadata())
+ if err != nil {
+ return nil, "", err
+ }
+
+ for _, u := range updates {
+ if err := u.Apply(bldr); err != nil {
+ return nil, "", err
+ }
+ }
+
+ meta, err := bldr.Build()
+ if err != nil {
+ return nil, "", err
+ }
+
+ return meta, "", nil
+}
+
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+ return fs.(iceio.WriteFileIO)
+}
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // Create new consolidated file
+ consolidatedPath := fmt.Sprintf("%s/data/consolidated.parquet", s.location)
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify file count reduction
+ snapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(snapshot)
+
+ // Verify data integrity by scanning
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(5), results.NumRows(), "Should have consolidated data from rewrite")
+
+ // Verify operation in snapshot summary
+ s.Equal(table.OpOverwrite, snapshot.Summary.Operation)
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := fmt.Sprintf("%s/data/consolidated1.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := fmt.Sprintf("%s/data/consolidated2.parquet", s.location)
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ _, err1 = tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
+ if err2 != nil {
+ s.T().Logf("Transaction conflict detected: %v", err2)
+ } else {
+ s.T().Log("Transaction completed without conflict - conflict detection may not be fully implemented")
+ }
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestOverwriteFiles() {
+ s.Run("OverwriteByPartition", func() {
+ // Note: Partition-specific operations require more complex setup
+ // For now, demonstrate basic overwrite capability
+ ident := table.Identifier{"default", "overwrite_partition_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ initialSnapshot := tbl.CurrentSnapshot()
+
+ // Create new data to simulate partition overwrite
+ mem := memory.DefaultAllocator
+ newData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 10, "data": "new_foo", "ts": 1672531200000000},
+ {"id": 20, "data": "new_bar", "ts": 1672534800000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer newData.Release()
+
+ // Write new file for overwrite
+ newFilePath := fmt.Sprintf("%s/data/new_partition_data.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, newFilePath, newData)
+
+ // Overwrite with new data
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{newFilePath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify new snapshot
+ newSnapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(newSnapshot)
+ s.NotEqual(initialSnapshot.SnapshotID, newSnapshot.SnapshotID)
+ })
+
+ s.Run("OverwriteWithFilter", func() {
+ // Test overwrite with row-level filters
+ ident := table.Identifier{"default", "overwrite_filter_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create replacement data
+ mem := memory.DefaultAllocator
+ replacementData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "updated_foo", "ts": 1672531200000000},
+ {"id": 4, "data": "new_data", "ts": 1672549200000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer replacementData.Release()
+
+ // For now, this demonstrates file-level replacement
+ // True row-level filtering would require delete files
+ consolidatedPath := fmt.Sprintf("%s/data/replacement.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, replacementData)
+
+ // For this test, we'll demonstrate overwrite by creating a new file
+ // and replacing specific known files rather than discovering them dynamically
+ // In a real scenario, you'd use manifest information to determine which files to replace
+
+ // Replace with filtered data - using the known original files from table creation
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify correct rows are present
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(2), results.NumRows(), "Should have filtered replacement data")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestPositionDeletes() {
+ s.Run("WritePositionDeleteFiles", func() {
+ // Test writing position delete files
+ ident := table.Identifier{"default", "position_delete_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create position delete data that deletes row at position 1 (second row)
+ mem := memory.DefaultAllocator
+
+ // Position delete schema: file_path (string), pos (int32)
+ posDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "file_path", Type: arrow.BinaryTypes.String, Nullable: false},
+ {Name: "pos", Type: arrow.PrimitiveTypes.Int32, Nullable: false},
+ }, nil)
+
+ // Create delete data for the first file, deleting position 1
+ deleteData, err := array.TableFromJSON(mem, posDeleteSchema, []string{
+ fmt.Sprintf(`[{"file_path": "%s", "pos": 1}]`, originalFiles[0]),
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the position delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/pos_deletes.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentPosDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil, // no partition data for unpartitioned
+ deleteData.NumRows(),
+ 1024, // approximate file size
+ )
+ s.Require().NoError(err)
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Verify the delete file was created with correct properties
+ s.Equal(iceberg.EntryContentPosDeletes, deleteFile.ContentType())
+ s.Equal(deleteFilePath, deleteFile.FilePath())
+ s.Equal(int64(1), deleteFile.Count()) // One delete entry
+
+ s.T().Log("Successfully created position delete file")
+ })
+
+ s.Run("ApplyPositionDeletes", func() {
+ // Test reading with position deletes applied
+ ident := table.Identifier{"default", "position_delete_apply_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // The current iceberg-go scanner should be able to read and apply position deletes
+ // when they are properly associated with data files in manifests
+
+ // For now, we'll test the delete file reading functionality
+ mem := memory.DefaultAllocator
+ posDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "file_path", Type: arrow.BinaryTypes.String, Nullable: false},
+ {Name: "pos", Type: arrow.PrimitiveTypes.Int32, Nullable: false},
+ }, nil)
+
+ // Create delete data
+ deleteData, err := array.TableFromJSON(mem, posDeleteSchema, []string{
+ fmt.Sprintf(`[
+ {"file_path": "%s", "pos": 0},
+ {"file_path": "%s", "pos": 2}
+ ]`, originalFiles[0], originalFiles[0]),
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the position delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/pos_deletes_apply.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentPosDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil,
+ deleteData.NumRows(),
+ 1024,
+ )
+ s.Require().NoError(err)
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Test that we can read the delete file and verify its structure
+ // This demonstrates the delete file format is correct
+ s.Equal(int64(2), deleteFile.Count()) // Two delete entries
+ s.Equal(iceberg.EntryContentPosDeletes, deleteFile.ContentType())
+
+ // NOTE: Full integration with table scanning would require updating
+ // manifests to include the delete files, which is a more complex operation
+ // that would need transaction-level support for delete file management
+
+ s.T().Log("Position delete file structure verified - integration with table scanning requires manifest updates")
Review Comment:
s.T().Skip()
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "Elbehery (via GitHub)" <gi...@apache.org>.
Elbehery commented on code in PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#discussion_r2231275232
##########
tests/write_operations_test.go:
##########
@@ -0,0 +1,813 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package tests
+
+import (
+ "context"
+ "fmt"
+ "path/filepath"
+ "strconv"
+ "strings"
+ "testing"
+
+ "github.com/apache/arrow-go/v18/arrow"
+ "github.com/apache/arrow-go/v18/arrow/array"
+ "github.com/apache/arrow-go/v18/arrow/memory"
+ "github.com/apache/arrow-go/v18/parquet/pqarrow"
+ "github.com/apache/iceberg-go"
+ iceio "github.com/apache/iceberg-go/io"
+ "github.com/apache/iceberg-go/table"
+ "github.com/google/uuid"
+ "github.com/stretchr/testify/suite"
+)
+
+// Mock catalog implementation for testing
+type mockedCatalog struct{}
+
+func (m *mockedCatalog) LoadTable(ctx context.Context, ident table.Identifier, props iceberg.Properties) (*table.Table, error) {
+ return nil, nil
+}
+
+func (m *mockedCatalog) CommitTable(ctx context.Context, tbl *table.Table, reqs []table.Requirement, updates []table.Update) (table.Metadata, string, error) {
+ bldr, err := table.MetadataBuilderFromBase(tbl.Metadata())
+ if err != nil {
+ return nil, "", err
+ }
+
+ for _, u := range updates {
+ if err := u.Apply(bldr); err != nil {
+ return nil, "", err
+ }
+ }
+
+ meta, err := bldr.Build()
+ if err != nil {
+ return nil, "", err
+ }
+
+ return meta, "", nil
+}
+
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+ return fs.(iceio.WriteFileIO)
+}
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // Create new consolidated file
+ consolidatedPath := fmt.Sprintf("%s/data/consolidated.parquet", s.location)
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify file count reduction
+ snapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(snapshot)
+
+ // Verify data integrity by scanning
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(5), results.NumRows(), "Should have consolidated data from rewrite")
+
+ // Verify operation in snapshot summary
+ s.Equal(table.OpOverwrite, snapshot.Summary.Operation)
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := fmt.Sprintf("%s/data/consolidated1.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := fmt.Sprintf("%s/data/consolidated2.parquet", s.location)
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ _, err1 = tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
+ if err2 != nil {
+ s.T().Logf("Transaction conflict detected: %v", err2)
+ } else {
+ s.T().Log("Transaction completed without conflict - conflict detection may not be fully implemented")
+ }
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestOverwriteFiles() {
+ s.Run("OverwriteByPartition", func() {
+ // Note: Partition-specific operations require more complex setup
+ // For now, demonstrate basic overwrite capability
+ ident := table.Identifier{"default", "overwrite_partition_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ initialSnapshot := tbl.CurrentSnapshot()
+
+ // Create new data to simulate partition overwrite
+ mem := memory.DefaultAllocator
+ newData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 10, "data": "new_foo", "ts": 1672531200000000},
+ {"id": 20, "data": "new_bar", "ts": 1672534800000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer newData.Release()
+
+ // Write new file for overwrite
+ newFilePath := fmt.Sprintf("%s/data/new_partition_data.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, newFilePath, newData)
+
+ // Overwrite with new data
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{newFilePath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify new snapshot
+ newSnapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(newSnapshot)
+ s.NotEqual(initialSnapshot.SnapshotID, newSnapshot.SnapshotID)
+ })
+
+ s.Run("OverwriteWithFilter", func() {
+ // Test overwrite with row-level filters
+ ident := table.Identifier{"default", "overwrite_filter_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create replacement data
+ mem := memory.DefaultAllocator
+ replacementData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "updated_foo", "ts": 1672531200000000},
+ {"id": 4, "data": "new_data", "ts": 1672549200000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer replacementData.Release()
+
+ // For now, this demonstrates file-level replacement
+ // True row-level filtering would require delete files
+ consolidatedPath := fmt.Sprintf("%s/data/replacement.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, replacementData)
+
+ // For this test, we'll demonstrate overwrite by creating a new file
+ // and replacing specific known files rather than discovering them dynamically
+ // In a real scenario, you'd use manifest information to determine which files to replace
+
+ // Replace with filtered data - using the known original files from table creation
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify correct rows are present
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(2), results.NumRows(), "Should have filtered replacement data")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestPositionDeletes() {
+ s.Run("WritePositionDeleteFiles", func() {
+ // Test writing position delete files
+ ident := table.Identifier{"default", "position_delete_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create position delete data that deletes row at position 1 (second row)
+ mem := memory.DefaultAllocator
+
+ // Position delete schema: file_path (string), pos (int32)
+ posDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "file_path", Type: arrow.BinaryTypes.String, Nullable: false},
+ {Name: "pos", Type: arrow.PrimitiveTypes.Int32, Nullable: false},
+ }, nil)
+
+ // Create delete data for the first file, deleting position 1
+ deleteData, err := array.TableFromJSON(mem, posDeleteSchema, []string{
+ fmt.Sprintf(`[{"file_path": "%s", "pos": 1}]`, originalFiles[0]),
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the position delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/pos_deletes.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentPosDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil, // no partition data for unpartitioned
+ deleteData.NumRows(),
+ 1024, // approximate file size
+ )
+ s.Require().NoError(err)
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Verify the delete file was created with correct properties
+ s.Equal(iceberg.EntryContentPosDeletes, deleteFile.ContentType())
+ s.Equal(deleteFilePath, deleteFile.FilePath())
+ s.Equal(int64(1), deleteFile.Count()) // One delete entry
+
+ s.T().Log("Successfully created position delete file")
+ })
+
+ s.Run("ApplyPositionDeletes", func() {
+ // Test reading with position deletes applied
+ ident := table.Identifier{"default", "position_delete_apply_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // The current iceberg-go scanner should be able to read and apply position deletes
+ // when they are properly associated with data files in manifests
+
+ // For now, we'll test the delete file reading functionality
+ mem := memory.DefaultAllocator
+ posDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "file_path", Type: arrow.BinaryTypes.String, Nullable: false},
+ {Name: "pos", Type: arrow.PrimitiveTypes.Int32, Nullable: false},
+ }, nil)
+
+ // Create delete data
+ deleteData, err := array.TableFromJSON(mem, posDeleteSchema, []string{
+ fmt.Sprintf(`[
+ {"file_path": "%s", "pos": 0},
+ {"file_path": "%s", "pos": 2}
+ ]`, originalFiles[0], originalFiles[0]),
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the position delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/pos_deletes_apply.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentPosDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil,
+ deleteData.NumRows(),
+ 1024,
+ )
+ s.Require().NoError(err)
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Test that we can read the delete file and verify its structure
+ // This demonstrates the delete file format is correct
+ s.Equal(int64(2), deleteFile.Count()) // Two delete entries
+ s.Equal(iceberg.EntryContentPosDeletes, deleteFile.ContentType())
+
+ // NOTE: Full integration with table scanning would require updating
+ // manifests to include the delete files, which is a more complex operation
+ // that would need transaction-level support for delete file management
+
+ s.T().Log("Position delete file structure verified - integration with table scanning requires manifest updates")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestEqualityDeletes() {
+ s.Run("WriteEqualityDeleteFiles", func() {
+ // Test writing equality delete files
+ ident := table.Identifier{"default", "equality_delete_test"}
+ tbl, _ := s.createTableWithData(ident, 1)
+
+ // Create equality delete data using subset of table schema
+ // Equality deletes contain the values that should be deleted
+ mem := memory.DefaultAllocator
+
+ // Equality delete schema - subset of table columns used for equality
+ eqDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ }, nil)
+
+ // Create delete data - delete rows where id=2 and data="bar"
+ deleteData, err := array.TableFromJSON(mem, eqDeleteSchema, []string{
+ `[{"id": 2, "data": "bar"}]`,
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the equality delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/eq_deletes.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the equality delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentEqDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil, // no partition data for unpartitioned
+ deleteData.NumRows(),
+ 1024, // approximate file size
+ )
+ s.Require().NoError(err)
+
+ // Set equality field IDs for the columns used in equality comparison
+ // Field IDs from our table schema: id=1, data=2
+ deleteFileBuilder.EqualityFieldIDs([]int{1, 2})
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Verify the delete file was created with correct properties
+ s.Equal(iceberg.EntryContentEqDeletes, deleteFile.ContentType())
+ s.Equal(deleteFilePath, deleteFile.FilePath())
+ s.Equal(int64(1), deleteFile.Count()) // One delete entry
+ s.Equal([]int{1, 2}, deleteFile.EqualityFieldIDs()) // Equality fields
+
+ s.T().Log("Successfully created equality delete file")
+ })
+
+ s.Run("ApplyEqualityDeletes", func() {
+ // Test equality delete file creation with multiple equality conditions
+ ident := table.Identifier{"default", "equality_delete_apply_test"}
+ tbl, _ := s.createTableWithData(ident, 1)
+
+ // Create equality delete data with multiple rows
+ mem := memory.DefaultAllocator
+
+ // Use only the id column for equality (simpler case)
+ eqDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ }, nil)
+
+ // Create delete data - delete rows where id=1 or id=3
+ deleteData, err := array.TableFromJSON(mem, eqDeleteSchema, []string{
+ `[
+ {"id": 1},
+ {"id": 3}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the equality delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/eq_deletes_apply.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the equality delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentEqDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil,
+ deleteData.NumRows(),
+ 1024,
+ )
+ s.Require().NoError(err)
+
+ // Set equality field ID for just the id column
+ deleteFileBuilder.EqualityFieldIDs([]int{1}) // id field
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Verify the delete file properties
+ s.Equal(int64(2), deleteFile.Count()) // Two delete entries
+ s.Equal(iceberg.EntryContentEqDeletes, deleteFile.ContentType())
+ s.Equal([]int{1}, deleteFile.EqualityFieldIDs()) // Only id field for equality
+
+ // NOTE: Full integration with table scanning would require:
+ // 1. Manifest updates to include the delete files
+ // 2. Scanner implementation to apply equality deletes during reading
+ // 3. The current scanner has error handling for equality deletes but
+ // returns "not yet supported" for actual application
+
+ s.T().Log("Equality delete file structure verified - scanner integration shows 'not yet supported'")
Review Comment:
deleted 👍🏽
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "Elbehery (via GitHub)" <gi...@apache.org>.
Elbehery commented on code in PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#discussion_r2231258698
##########
tests/write_operations_test.go:
##########
@@ -0,0 +1,813 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package tests
+
+import (
+ "context"
+ "fmt"
+ "path/filepath"
+ "strconv"
+ "strings"
+ "testing"
+
+ "github.com/apache/arrow-go/v18/arrow"
+ "github.com/apache/arrow-go/v18/arrow/array"
+ "github.com/apache/arrow-go/v18/arrow/memory"
+ "github.com/apache/arrow-go/v18/parquet/pqarrow"
+ "github.com/apache/iceberg-go"
+ iceio "github.com/apache/iceberg-go/io"
+ "github.com/apache/iceberg-go/table"
+ "github.com/google/uuid"
+ "github.com/stretchr/testify/suite"
+)
+
+// Mock catalog implementation for testing
+type mockedCatalog struct{}
+
+func (m *mockedCatalog) LoadTable(ctx context.Context, ident table.Identifier, props iceberg.Properties) (*table.Table, error) {
+ return nil, nil
+}
+
+func (m *mockedCatalog) CommitTable(ctx context.Context, tbl *table.Table, reqs []table.Requirement, updates []table.Update) (table.Metadata, string, error) {
+ bldr, err := table.MetadataBuilderFromBase(tbl.Metadata())
+ if err != nil {
+ return nil, "", err
+ }
+
+ for _, u := range updates {
+ if err := u.Apply(bldr); err != nil {
+ return nil, "", err
+ }
+ }
+
+ meta, err := bldr.Build()
+ if err != nil {
+ return nil, "", err
+ }
+
+ return meta, "", nil
+}
+
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+ return fs.(iceio.WriteFileIO)
+}
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // Create new consolidated file
+ consolidatedPath := fmt.Sprintf("%s/data/consolidated.parquet", s.location)
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify file count reduction
+ snapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(snapshot)
+
+ // Verify data integrity by scanning
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(5), results.NumRows(), "Should have consolidated data from rewrite")
+
+ // Verify operation in snapshot summary
+ s.Equal(table.OpOverwrite, snapshot.Summary.Operation)
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := fmt.Sprintf("%s/data/consolidated1.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := fmt.Sprintf("%s/data/consolidated2.parquet", s.location)
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ _, err1 = tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
+ if err2 != nil {
+ s.T().Logf("Transaction conflict detected: %v", err2)
+ } else {
+ s.T().Log("Transaction completed without conflict - conflict detection may not be fully implemented")
+ }
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestOverwriteFiles() {
+ s.Run("OverwriteByPartition", func() {
+ // Note: Partition-specific operations require more complex setup
+ // For now, demonstrate basic overwrite capability
+ ident := table.Identifier{"default", "overwrite_partition_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ initialSnapshot := tbl.CurrentSnapshot()
+
+ // Create new data to simulate partition overwrite
+ mem := memory.DefaultAllocator
+ newData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 10, "data": "new_foo", "ts": 1672531200000000},
+ {"id": 20, "data": "new_bar", "ts": 1672534800000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer newData.Release()
+
+ // Write new file for overwrite
+ newFilePath := fmt.Sprintf("%s/data/new_partition_data.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, newFilePath, newData)
+
+ // Overwrite with new data
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{newFilePath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify new snapshot
+ newSnapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(newSnapshot)
+ s.NotEqual(initialSnapshot.SnapshotID, newSnapshot.SnapshotID)
+ })
+
+ s.Run("OverwriteWithFilter", func() {
+ // Test overwrite with row-level filters
+ ident := table.Identifier{"default", "overwrite_filter_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create replacement data
+ mem := memory.DefaultAllocator
+ replacementData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "updated_foo", "ts": 1672531200000000},
+ {"id": 4, "data": "new_data", "ts": 1672549200000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer replacementData.Release()
+
+ // For now, this demonstrates file-level replacement
+ // True row-level filtering would require delete files
+ consolidatedPath := fmt.Sprintf("%s/data/replacement.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, replacementData)
+
+ // For this test, we'll demonstrate overwrite by creating a new file
+ // and replacing specific known files rather than discovering them dynamically
+ // In a real scenario, you'd use manifest information to determine which files to replace
+
+ // Replace with filtered data - using the known original files from table creation
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify correct rows are present
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(2), results.NumRows(), "Should have filtered replacement data")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestPositionDeletes() {
+ s.Run("WritePositionDeleteFiles", func() {
+ // Test writing position delete files
+ ident := table.Identifier{"default", "position_delete_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create position delete data that deletes row at position 1 (second row)
+ mem := memory.DefaultAllocator
+
+ // Position delete schema: file_path (string), pos (int32)
+ posDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "file_path", Type: arrow.BinaryTypes.String, Nullable: false},
+ {Name: "pos", Type: arrow.PrimitiveTypes.Int32, Nullable: false},
+ }, nil)
+
+ // Create delete data for the first file, deleting position 1
+ deleteData, err := array.TableFromJSON(mem, posDeleteSchema, []string{
+ fmt.Sprintf(`[{"file_path": "%s", "pos": 1}]`, originalFiles[0]),
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the position delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/pos_deletes.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentPosDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil, // no partition data for unpartitioned
+ deleteData.NumRows(),
+ 1024, // approximate file size
+ )
+ s.Require().NoError(err)
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Verify the delete file was created with correct properties
+ s.Equal(iceberg.EntryContentPosDeletes, deleteFile.ContentType())
+ s.Equal(deleteFilePath, deleteFile.FilePath())
+ s.Equal(int64(1), deleteFile.Count()) // One delete entry
+
+ s.T().Log("Successfully created position delete file")
+ })
+
+ s.Run("ApplyPositionDeletes", func() {
+ // Test reading with position deletes applied
+ ident := table.Identifier{"default", "position_delete_apply_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // The current iceberg-go scanner should be able to read and apply position deletes
+ // when they are properly associated with data files in manifests
+
+ // For now, we'll test the delete file reading functionality
+ mem := memory.DefaultAllocator
+ posDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "file_path", Type: arrow.BinaryTypes.String, Nullable: false},
+ {Name: "pos", Type: arrow.PrimitiveTypes.Int32, Nullable: false},
+ }, nil)
+
+ // Create delete data
+ deleteData, err := array.TableFromJSON(mem, posDeleteSchema, []string{
+ fmt.Sprintf(`[
+ {"file_path": "%s", "pos": 0},
+ {"file_path": "%s", "pos": 2}
+ ]`, originalFiles[0], originalFiles[0]),
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the position delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/pos_deletes_apply.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentPosDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil,
+ deleteData.NumRows(),
+ 1024,
+ )
+ s.Require().NoError(err)
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Test that we can read the delete file and verify its structure
+ // This demonstrates the delete file format is correct
+ s.Equal(int64(2), deleteFile.Count()) // Two delete entries
+ s.Equal(iceberg.EntryContentPosDeletes, deleteFile.ContentType())
+
+ // NOTE: Full integration with table scanning would require updating
+ // manifests to include the delete files, which is a more complex operation
+ // that would need transaction-level support for delete file management
+
+ s.T().Log("Position delete file structure verified - integration with table scanning requires manifest updates")
Review Comment:
added 👍🏽
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "Elbehery (via GitHub)" <gi...@apache.org>.
Elbehery commented on code in PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#discussion_r2230977110
##########
tests/write_operations_test.go:
##########
@@ -0,0 +1,813 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package tests
+
+import (
+ "context"
+ "fmt"
+ "path/filepath"
+ "strconv"
+ "strings"
+ "testing"
+
+ "github.com/apache/arrow-go/v18/arrow"
+ "github.com/apache/arrow-go/v18/arrow/array"
+ "github.com/apache/arrow-go/v18/arrow/memory"
+ "github.com/apache/arrow-go/v18/parquet/pqarrow"
+ "github.com/apache/iceberg-go"
+ iceio "github.com/apache/iceberg-go/io"
+ "github.com/apache/iceberg-go/table"
+ "github.com/google/uuid"
+ "github.com/stretchr/testify/suite"
+)
+
+// Mock catalog implementation for testing
+type mockedCatalog struct{}
+
+func (m *mockedCatalog) LoadTable(ctx context.Context, ident table.Identifier, props iceberg.Properties) (*table.Table, error) {
+ return nil, nil
+}
+
+func (m *mockedCatalog) CommitTable(ctx context.Context, tbl *table.Table, reqs []table.Requirement, updates []table.Update) (table.Metadata, string, error) {
+ bldr, err := table.MetadataBuilderFromBase(tbl.Metadata())
+ if err != nil {
+ return nil, "", err
+ }
+
+ for _, u := range updates {
+ if err := u.Apply(bldr); err != nil {
+ return nil, "", err
+ }
+ }
+
+ meta, err := bldr.Build()
+ if err != nil {
+ return nil, "", err
+ }
+
+ return meta, "", nil
+}
+
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+ return fs.(iceio.WriteFileIO)
+}
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // Create new consolidated file
+ consolidatedPath := fmt.Sprintf("%s/data/consolidated.parquet", s.location)
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify file count reduction
+ snapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(snapshot)
+
+ // Verify data integrity by scanning
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(5), results.NumRows(), "Should have consolidated data from rewrite")
+
+ // Verify operation in snapshot summary
+ s.Equal(table.OpOverwrite, snapshot.Summary.Operation)
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := fmt.Sprintf("%s/data/consolidated1.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := fmt.Sprintf("%s/data/consolidated2.parquet", s.location)
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ _, err1 = tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
+ if err2 != nil {
+ s.T().Logf("Transaction conflict detected: %v", err2)
+ } else {
+ s.T().Log("Transaction completed without conflict - conflict detection may not be fully implemented")
+ }
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestOverwriteFiles() {
+ s.Run("OverwriteByPartition", func() {
+ // Note: Partition-specific operations require more complex setup
+ // For now, demonstrate basic overwrite capability
+ ident := table.Identifier{"default", "overwrite_partition_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ initialSnapshot := tbl.CurrentSnapshot()
+
+ // Create new data to simulate partition overwrite
+ mem := memory.DefaultAllocator
+ newData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 10, "data": "new_foo", "ts": 1672531200000000},
+ {"id": 20, "data": "new_bar", "ts": 1672534800000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer newData.Release()
+
+ // Write new file for overwrite
+ newFilePath := fmt.Sprintf("%s/data/new_partition_data.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, newFilePath, newData)
+
+ // Overwrite with new data
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{newFilePath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify new snapshot
+ newSnapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(newSnapshot)
+ s.NotEqual(initialSnapshot.SnapshotID, newSnapshot.SnapshotID)
+ })
+
+ s.Run("OverwriteWithFilter", func() {
+ // Test overwrite with row-level filters
+ ident := table.Identifier{"default", "overwrite_filter_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create replacement data
+ mem := memory.DefaultAllocator
+ replacementData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "updated_foo", "ts": 1672531200000000},
+ {"id": 4, "data": "new_data", "ts": 1672549200000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer replacementData.Release()
+
+ // For now, this demonstrates file-level replacement
+ // True row-level filtering would require delete files
+ consolidatedPath := fmt.Sprintf("%s/data/replacement.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, replacementData)
+
+ // For this test, we'll demonstrate overwrite by creating a new file
+ // and replacing specific known files rather than discovering them dynamically
+ // In a real scenario, you'd use manifest information to determine which files to replace
+
+ // Replace with filtered data - using the known original files from table creation
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify correct rows are present
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(2), results.NumRows(), "Should have filtered replacement data")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestPositionDeletes() {
+ s.Run("WritePositionDeleteFiles", func() {
+ // Test writing position delete files
+ ident := table.Identifier{"default", "position_delete_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create position delete data that deletes row at position 1 (second row)
+ mem := memory.DefaultAllocator
+
+ // Position delete schema: file_path (string), pos (int32)
+ posDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "file_path", Type: arrow.BinaryTypes.String, Nullable: false},
+ {Name: "pos", Type: arrow.PrimitiveTypes.Int32, Nullable: false},
+ }, nil)
+
+ // Create delete data for the first file, deleting position 1
+ deleteData, err := array.TableFromJSON(mem, posDeleteSchema, []string{
+ fmt.Sprintf(`[{"file_path": "%s", "pos": 1}]`, originalFiles[0]),
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the position delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/pos_deletes.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentPosDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil, // no partition data for unpartitioned
+ deleteData.NumRows(),
+ 1024, // approximate file size
+ )
+ s.Require().NoError(err)
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Verify the delete file was created with correct properties
+ s.Equal(iceberg.EntryContentPosDeletes, deleteFile.ContentType())
+ s.Equal(deleteFilePath, deleteFile.FilePath())
+ s.Equal(int64(1), deleteFile.Count()) // One delete entry
+
+ s.T().Log("Successfully created position delete file")
+ })
+
+ s.Run("ApplyPositionDeletes", func() {
+ // Test reading with position deletes applied
+ ident := table.Identifier{"default", "position_delete_apply_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // The current iceberg-go scanner should be able to read and apply position deletes
+ // when they are properly associated with data files in manifests
+
+ // For now, we'll test the delete file reading functionality
+ mem := memory.DefaultAllocator
+ posDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "file_path", Type: arrow.BinaryTypes.String, Nullable: false},
+ {Name: "pos", Type: arrow.PrimitiveTypes.Int32, Nullable: false},
+ }, nil)
+
+ // Create delete data
+ deleteData, err := array.TableFromJSON(mem, posDeleteSchema, []string{
+ fmt.Sprintf(`[
+ {"file_path": "%s", "pos": 0},
+ {"file_path": "%s", "pos": 2}
+ ]`, originalFiles[0], originalFiles[0]),
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the position delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/pos_deletes_apply.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentPosDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil,
+ deleteData.NumRows(),
+ 1024,
+ )
+ s.Require().NoError(err)
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Test that we can read the delete file and verify its structure
+ // This demonstrates the delete file format is correct
+ s.Equal(int64(2), deleteFile.Count()) // Two delete entries
+ s.Equal(iceberg.EntryContentPosDeletes, deleteFile.ContentType())
+
+ // NOTE: Full integration with table scanning would require updating
+ // manifests to include the delete files, which is a more complex operation
+ // that would need transaction-level support for delete file management
+
+ s.T().Log("Position delete file structure verified - integration with table scanning requires manifest updates")
Review Comment:
iiuc this is the end of the test .. u mean to skip this test
```
s.Run("ApplyPositionDeletes", func() {
```
?
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "Elbehery (via GitHub)" <gi...@apache.org>.
Elbehery commented on code in PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#discussion_r2231258698
##########
tests/write_operations_test.go:
##########
@@ -0,0 +1,813 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package tests
+
+import (
+ "context"
+ "fmt"
+ "path/filepath"
+ "strconv"
+ "strings"
+ "testing"
+
+ "github.com/apache/arrow-go/v18/arrow"
+ "github.com/apache/arrow-go/v18/arrow/array"
+ "github.com/apache/arrow-go/v18/arrow/memory"
+ "github.com/apache/arrow-go/v18/parquet/pqarrow"
+ "github.com/apache/iceberg-go"
+ iceio "github.com/apache/iceberg-go/io"
+ "github.com/apache/iceberg-go/table"
+ "github.com/google/uuid"
+ "github.com/stretchr/testify/suite"
+)
+
+// Mock catalog implementation for testing
+type mockedCatalog struct{}
+
+func (m *mockedCatalog) LoadTable(ctx context.Context, ident table.Identifier, props iceberg.Properties) (*table.Table, error) {
+ return nil, nil
+}
+
+func (m *mockedCatalog) CommitTable(ctx context.Context, tbl *table.Table, reqs []table.Requirement, updates []table.Update) (table.Metadata, string, error) {
+ bldr, err := table.MetadataBuilderFromBase(tbl.Metadata())
+ if err != nil {
+ return nil, "", err
+ }
+
+ for _, u := range updates {
+ if err := u.Apply(bldr); err != nil {
+ return nil, "", err
+ }
+ }
+
+ meta, err := bldr.Build()
+ if err != nil {
+ return nil, "", err
+ }
+
+ return meta, "", nil
+}
+
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+ return fs.(iceio.WriteFileIO)
+}
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
+ // Setup table with multiple small files
+ ident := table.Identifier{"default", "rewrite_test_table"}
+ tbl, originalFiles := s.createTableWithData(ident, 3)
+
+ // Create new consolidated file
+ consolidatedPath := fmt.Sprintf("%s/data/consolidated.parquet", s.location)
+
+ // Create larger dataset for consolidation
+ mem := memory.DefaultAllocator
+ largerTable, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000},
+ {"id": 4, "data": "qux", "ts": 1672542000000000},
+ {"id": 5, "data": "quux", "ts": 1672545600000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer largerTable.Release()
+
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, largerTable)
+
+ // Rewrite files (replace multiple small files with one larger file)
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify file count reduction
+ snapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(snapshot)
+
+ // Verify data integrity by scanning
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(5), results.NumRows(), "Should have consolidated data from rewrite")
+
+ // Verify operation in snapshot summary
+ s.Equal(table.OpOverwrite, snapshot.Summary.Operation)
+ })
+
+ s.Run("RewriteWithConflictDetection", func() {
+ // Test concurrent rewrite operations
+ ident := table.Identifier{"default", "rewrite_conflict_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 2)
+
+ // Start first transaction
+ tx1 := tbl.NewTransaction()
+ consolidatedPath1 := fmt.Sprintf("%s/data/consolidated1.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath1, s.arrTable)
+
+ // Start second transaction
+ tx2 := tbl.NewTransaction()
+ consolidatedPath2 := fmt.Sprintf("%s/data/consolidated2.parquet", s.location)
+ s.writeParquet(fs, consolidatedPath2, s.arrTable)
+
+ // Both try to replace the same files
+ err1 := tx1.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath1}, nil)
+ s.Require().NoError(err1)
+
+ err2 := tx2.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath2}, nil)
+ s.Require().NoError(err2)
+
+ // First should succeed
+ _, err1 = tx1.Commit(s.ctx)
+ s.Require().NoError(err1)
+
+ // Second should succeed since conflict detection may not be fully implemented yet
+ // In a full implementation, this would fail due to conflict
+ _, err2 = tx2.Commit(s.ctx)
+ if err2 != nil {
+ s.T().Logf("Transaction conflict detected: %v", err2)
+ } else {
+ s.T().Log("Transaction completed without conflict - conflict detection may not be fully implemented")
+ }
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestOverwriteFiles() {
+ s.Run("OverwriteByPartition", func() {
+ // Note: Partition-specific operations require more complex setup
+ // For now, demonstrate basic overwrite capability
+ ident := table.Identifier{"default", "overwrite_partition_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ initialSnapshot := tbl.CurrentSnapshot()
+
+ // Create new data to simulate partition overwrite
+ mem := memory.DefaultAllocator
+ newData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 10, "data": "new_foo", "ts": 1672531200000000},
+ {"id": 20, "data": "new_bar", "ts": 1672534800000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer newData.Release()
+
+ // Write new file for overwrite
+ newFilePath := fmt.Sprintf("%s/data/new_partition_data.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, newFilePath, newData)
+
+ // Overwrite with new data
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{newFilePath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify new snapshot
+ newSnapshot := newTbl.CurrentSnapshot()
+ s.Require().NotNil(newSnapshot)
+ s.NotEqual(initialSnapshot.SnapshotID, newSnapshot.SnapshotID)
+ })
+
+ s.Run("OverwriteWithFilter", func() {
+ // Test overwrite with row-level filters
+ ident := table.Identifier{"default", "overwrite_filter_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create replacement data
+ mem := memory.DefaultAllocator
+ replacementData, err := array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "updated_foo", "ts": 1672531200000000},
+ {"id": 4, "data": "new_data", "ts": 1672549200000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+ defer replacementData.Release()
+
+ // For now, this demonstrates file-level replacement
+ // True row-level filtering would require delete files
+ consolidatedPath := fmt.Sprintf("%s/data/replacement.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, consolidatedPath, replacementData)
+
+ // For this test, we'll demonstrate overwrite by creating a new file
+ // and replacing specific known files rather than discovering them dynamically
+ // In a real scenario, you'd use manifest information to determine which files to replace
+
+ // Replace with filtered data - using the known original files from table creation
+ tx := tbl.NewTransaction()
+ err = tx.ReplaceDataFiles(s.ctx, originalFiles, []string{consolidatedPath}, nil)
+ s.Require().NoError(err)
+
+ newTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ // Verify correct rows are present
+ scan := newTbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err)
+ defer results.Release()
+
+ s.Equal(int64(2), results.NumRows(), "Should have filtered replacement data")
+ })
+}
+
+func (s *WriteOperationsTestSuite) TestPositionDeletes() {
+ s.Run("WritePositionDeleteFiles", func() {
+ // Test writing position delete files
+ ident := table.Identifier{"default", "position_delete_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // Create position delete data that deletes row at position 1 (second row)
+ mem := memory.DefaultAllocator
+
+ // Position delete schema: file_path (string), pos (int32)
+ posDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "file_path", Type: arrow.BinaryTypes.String, Nullable: false},
+ {Name: "pos", Type: arrow.PrimitiveTypes.Int32, Nullable: false},
+ }, nil)
+
+ // Create delete data for the first file, deleting position 1
+ deleteData, err := array.TableFromJSON(mem, posDeleteSchema, []string{
+ fmt.Sprintf(`[{"file_path": "%s", "pos": 1}]`, originalFiles[0]),
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the position delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/pos_deletes.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentPosDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil, // no partition data for unpartitioned
+ deleteData.NumRows(),
+ 1024, // approximate file size
+ )
+ s.Require().NoError(err)
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Verify the delete file was created with correct properties
+ s.Equal(iceberg.EntryContentPosDeletes, deleteFile.ContentType())
+ s.Equal(deleteFilePath, deleteFile.FilePath())
+ s.Equal(int64(1), deleteFile.Count()) // One delete entry
+
+ s.T().Log("Successfully created position delete file")
+ })
+
+ s.Run("ApplyPositionDeletes", func() {
+ // Test reading with position deletes applied
+ ident := table.Identifier{"default", "position_delete_apply_test"}
+ tbl, originalFiles := s.createTableWithData(ident, 1)
+
+ // The current iceberg-go scanner should be able to read and apply position deletes
+ // when they are properly associated with data files in manifests
+
+ // For now, we'll test the delete file reading functionality
+ mem := memory.DefaultAllocator
+ posDeleteSchema := arrow.NewSchema([]arrow.Field{
+ {Name: "file_path", Type: arrow.BinaryTypes.String, Nullable: false},
+ {Name: "pos", Type: arrow.PrimitiveTypes.Int32, Nullable: false},
+ }, nil)
+
+ // Create delete data
+ deleteData, err := array.TableFromJSON(mem, posDeleteSchema, []string{
+ fmt.Sprintf(`[
+ {"file_path": "%s", "pos": 0},
+ {"file_path": "%s", "pos": 2}
+ ]`, originalFiles[0], originalFiles[0]),
+ })
+ s.Require().NoError(err)
+ defer deleteData.Release()
+
+ // Write the position delete file
+ deleteFilePath := fmt.Sprintf("%s/deletes/pos_deletes_apply.parquet", s.location)
+ fs := s.getFS(tbl)
+ s.writeParquet(fs, deleteFilePath, deleteData)
+
+ // Create DataFile object for the delete file
+ deleteFileBuilder, err := iceberg.NewDataFileBuilder(
+ *iceberg.UnpartitionedSpec,
+ iceberg.EntryContentPosDeletes,
+ deleteFilePath,
+ iceberg.ParquetFile,
+ nil,
+ deleteData.NumRows(),
+ 1024,
+ )
+ s.Require().NoError(err)
+
+ deleteFile := deleteFileBuilder.Build()
+
+ // Test that we can read the delete file and verify its structure
+ // This demonstrates the delete file format is correct
+ s.Equal(int64(2), deleteFile.Count()) // Two delete entries
+ s.Equal(iceberg.EntryContentPosDeletes, deleteFile.ContentType())
+
+ // NOTE: Full integration with table scanning would require updating
+ // manifests to include the delete files, which is a more complex operation
+ // that would need transaction-level support for delete file management
+
+ s.T().Log("Position delete file structure verified - integration with table scanning requires manifest updates")
Review Comment:
deleted 👍🏽
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "zeroshade (via GitHub)" <gi...@apache.org>.
zeroshade commented on PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#issuecomment-3118100828
Many of these types of tests already exist in table/table_test.go, can we move these tests there instead?
Go doesn't really have a convention of a "tests" directory like this, the tests should be in the same package as the code being tested.
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "Elbehery (via GitHub)" <gi...@apache.org>.
Elbehery commented on PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#issuecomment-3118285989
> Many of these types of tests already exist in table/table_test.go, can we move these tests there instead?
>
> Go doesn't really have a convention of a "tests" directory like this, the tests should be in the same package as the code being tested.
check now 👍🏽
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "Elbehery (via GitHub)" <gi...@apache.org>.
Elbehery commented on PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#issuecomment-3119471785
@zeroshade ptal :)
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Re: [PR] test: add write operations test suite [iceberg-go]
Posted by "zeroshade (via GitHub)" <gi...@apache.org>.
zeroshade commented on code in PR #497:
URL: https://github.com/apache/iceberg-go/pull/497#discussion_r2231653692
##########
table/table_test.go:
##########
@@ -1202,6 +1202,1059 @@ func TestTableWriting(t *testing.T) {
suite.Run(t, &TableWritingTestSuite{formatVersion: 2})
}
+// WriteOperationsTestSuite provides comprehensive testing for advanced write operations
+type WriteOperationsTestSuite struct {
+ suite.Suite
+ ctx context.Context
+ location string
+ tableSchema *iceberg.Schema
+ arrSchema *arrow.Schema
+ arrTable arrow.Table
+}
+
+func TestWriteOperations(t *testing.T) {
+ suite.Run(t, new(WriteOperationsTestSuite))
+}
+
+func (s *WriteOperationsTestSuite) SetupSuite() {
+ s.ctx = context.Background()
+ mem := memory.DefaultAllocator
+
+ // Create a test schema
+ s.tableSchema = iceberg.NewSchema(0,
+ iceberg.NestedField{ID: 1, Name: "id", Type: iceberg.PrimitiveTypes.Int64, Required: true},
+ iceberg.NestedField{ID: 2, Name: "data", Type: iceberg.PrimitiveTypes.String},
+ iceberg.NestedField{ID: 3, Name: "ts", Type: iceberg.PrimitiveTypes.Timestamp})
+
+ s.arrSchema = arrow.NewSchema([]arrow.Field{
+ {Name: "id", Type: arrow.PrimitiveTypes.Int64, Nullable: false},
+ {Name: "data", Type: arrow.BinaryTypes.String, Nullable: true},
+ {Name: "ts", Type: &arrow.TimestampType{Unit: arrow.Microsecond}, Nullable: true},
+ }, nil)
+
+ // Create test data
+ var err error
+ s.arrTable, err = array.TableFromJSON(mem, s.arrSchema, []string{
+ `[
+ {"id": 1, "data": "foo", "ts": 1672531200000000},
+ {"id": 2, "data": "bar", "ts": 1672534800000000},
+ {"id": 3, "data": "baz", "ts": 1672538400000000}
+ ]`,
+ })
+ s.Require().NoError(err)
+}
+
+func (s *WriteOperationsTestSuite) SetupTest() {
+ s.location = filepath.ToSlash(strings.Replace(s.T().TempDir(), "#", "", -1))
+}
+
+func (s *WriteOperationsTestSuite) TearDownSuite() {
+ s.arrTable.Release()
+}
+
+func (s *WriteOperationsTestSuite) getMetadataLoc() string {
+ return fmt.Sprintf("%s/metadata/%05d-%s.metadata.json",
+ s.location, 1, uuid.New().String())
+}
+
+func (s *WriteOperationsTestSuite) writeParquet(fio iceio.WriteFileIO, filePath string, arrTbl arrow.Table) {
+ fo, err := fio.Create(filePath)
+ s.Require().NoError(err)
+
+ s.Require().NoError(pqarrow.WriteTable(arrTbl, fo, arrTbl.NumRows(),
+ nil, pqarrow.DefaultWriterProps()))
+}
+
+func (s *WriteOperationsTestSuite) createTable(identifier table.Identifier, formatVersion int, spec iceberg.PartitionSpec) *table.Table {
+ meta, err := table.NewMetadata(s.tableSchema, &spec, table.UnsortedSortOrder,
+ s.location, iceberg.Properties{"format-version": strconv.Itoa(formatVersion)})
+ s.Require().NoError(err)
+
+ return table.New(
+ identifier,
+ meta,
+ s.getMetadataLoc(),
+ func(ctx context.Context) (iceio.IO, error) {
+ return iceio.LocalFS{}, nil
+ },
+ &mockedCatalog{},
+ )
+}
+
+func (s *WriteOperationsTestSuite) createTableWithData(identifier table.Identifier, numFiles int) (*table.Table, []string) {
+ tbl := s.createTable(identifier, 2, *iceberg.UnpartitionedSpec)
+
+ files := make([]string, 0, numFiles)
+ fs := s.getFS(tbl)
+
+ for i := 0; i < numFiles; i++ {
+ filePath := fmt.Sprintf("%s/data/test-%d.parquet", s.location, i)
+ s.writeParquet(fs, filePath, s.arrTable)
+ files = append(files, filePath)
+ }
+
+ // Add files to table
+ tx := tbl.NewTransaction()
+ s.Require().NoError(tx.AddFiles(s.ctx, files, nil, false))
+
+ committedTbl, err := tx.Commit(s.ctx)
+ s.Require().NoError(err)
+
+ return committedTbl, files
+}
+
+func (s *WriteOperationsTestSuite) getFS(tbl *table.Table) iceio.WriteFileIO {
+ fs, err := tbl.FS(s.ctx)
+ s.Require().NoError(err)
+
+ return fs.(iceio.WriteFileIO)
+}
+
+// =============================================================================
+// SNAPSHOT VALIDATION HELPERS
+// =============================================================================
+
+// validateSnapshotFiles checks that the snapshot contains exactly the expected files
+func (s *WriteOperationsTestSuite) validateSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ // Get actual files from snapshot using public API
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var actualFiles []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ actualFiles = append(actualFiles, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for comparison
+ expectedSorted := make([]string, len(expectedFiles))
+ copy(expectedSorted, expectedFiles)
+ slices.Sort(expectedSorted)
+ slices.Sort(actualFiles)
+
+ s.Equal(len(expectedSorted), len(actualFiles), "File count mismatch - expected %d files, got %d", len(expectedSorted), len(actualFiles))
+ s.Equal(expectedSorted, actualFiles, "File paths don't match expected.\nExpected: %v\nActual: %v", expectedSorted, actualFiles)
+
+ s.T().Logf("Snapshot file validation passed: %d files match expected", len(actualFiles))
+}
+
+// validateSnapshotSummary checks operation type and summary properties
+func (s *WriteOperationsTestSuite) validateSnapshotSummary(snapshot *table.Snapshot, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+ s.Require().NotNil(snapshot.Summary, "Snapshot summary should not be nil")
+
+ s.Equal(expectedOp, snapshot.Summary.Operation, "Snapshot operation mismatch")
+
+ if expectedCounts != nil {
+ for key, expectedValue := range expectedCounts {
+ actualValue, exists := snapshot.Summary.Properties[key]
+ s.True(exists, "Summary property %s should exist", key)
+ s.Equal(expectedValue, actualValue, "Summary property %s mismatch - expected %s, got %s", key, expectedValue, actualValue)
+ }
+ }
+
+ s.T().Logf("Snapshot summary validation passed: operation=%s, properties=%d", expectedOp, len(expectedCounts))
+}
+
+// validateManifestStructure validates manifest files and returns total entry count
+func (s *WriteOperationsTestSuite) validateManifestStructure(snapshot *table.Snapshot, fs iceio.IO) int {
+ s.Require().NotNil(snapshot, "Snapshot should not be nil")
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+ s.Greater(len(manifests), 0, "Should have at least one manifest")
+
+ totalEntries := 0
+ for i, manifest := range manifests {
+ // Validate manifest is readable
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest %d", i)
+ totalEntries += len(entries)
+
+ // Validate manifest metadata
+ s.Greater(manifest.Length(), int64(0), "Manifest %d should have positive length", i)
+ s.NotEmpty(manifest.FilePath(), "Manifest %d should have valid path", i)
+
+ s.T().Logf("📄 Manifest %d: %s (%d entries, %d bytes)", i, manifest.FilePath(), len(entries), manifest.Length())
+ }
+
+ s.T().Logf("Manifest structure validation passed: %d manifests, %d total entries", len(manifests), totalEntries)
+
+ return totalEntries
+}
+
+// validateSnapshotState performs comprehensive validation of snapshot state
+func (s *WriteOperationsTestSuite) validateSnapshotState(snapshot *table.Snapshot, fs iceio.IO, expectedFiles []string, expectedOp table.Operation, expectedCounts map[string]string) {
+ s.T().Logf("🔍 Validating snapshot state (ID: %d)", snapshot.SnapshotID)
+
+ // Validate all components
+ s.validateSnapshotFiles(snapshot, fs, expectedFiles)
+ s.validateSnapshotSummary(snapshot, expectedOp, expectedCounts)
+ entryCount := s.validateManifestStructure(snapshot, fs)
+
+ // Ensure manifest entries match file count
+ s.Equal(len(expectedFiles), entryCount, "Manifest entry count should match expected file count")
+
+ s.T().Logf("🎉 Complete snapshot validation passed for snapshot %d", snapshot.SnapshotID)
+}
+
+// validateDataIntegrity scans the table and validates row count and basic data
+func (s *WriteOperationsTestSuite) validateDataIntegrity(tbl *table.Table, expectedRowCount int64) {
+ scan := tbl.Scan()
+ results, err := scan.ToArrowTable(s.ctx)
+ s.Require().NoError(err, "Failed to scan table for data integrity check")
+ defer results.Release()
+
+ s.Equal(expectedRowCount, results.NumRows(), "Row count mismatch - expected %d, got %d", expectedRowCount, results.NumRows())
+
+ // Basic data validation - ensure we can read the data
+ s.Equal(3, int(results.NumCols()), "Should have 3 columns (id, data, ts)")
+
+ s.T().Logf("Data integrity validation passed: %d rows, %d columns", results.NumRows(), results.NumCols())
+}
+
+// getSnapshotFiles extracts the list of data file paths from a snapshot for comparison
+func (s *WriteOperationsTestSuite) getSnapshotFiles(snapshot *table.Snapshot, fs iceio.IO) []string {
+ if snapshot == nil {
+ return []string{}
+ }
+
+ manifests, err := snapshot.Manifests(fs)
+ s.Require().NoError(err, "Failed to read manifests from snapshot")
+
+ var files []string
+ for _, manifest := range manifests {
+ entries, err := manifest.FetchEntries(fs, false)
+ s.Require().NoError(err, "Failed to fetch entries from manifest")
+
+ for _, entry := range entries {
+ // Only include data files (not delete files)
+ if entry.DataFile().ContentType() == iceberg.EntryContentData {
+ files = append(files, entry.DataFile().FilePath())
+ }
+ }
+ }
+
+ // Sort for consistent comparison
+ slices.Sort(files)
+
+ return files
+}
+
+// =============================================================================
+// TESTS WITH ENHANCED VALIDATION
+// =============================================================================
+
+func TestRewriteFiles(t *testing.T) {
+ suite.Run(t, &WriteOperationsTestSuite{})
+}
+
+func (s *WriteOperationsTestSuite) TestRewriteFiles() {
+ s.Run("RewriteDataFiles", func() {
Review Comment:
When you use the test suite pattern, having a function `TestRewriteDataFiles` will create the subtest for you. You don't need to manually add `s.Run` here. Since there's no commonality between the subtests it would be better for them to be separate functions.
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