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Posted to commits@arrow.apache.org by al...@apache.org on 2022/12/08 12:17:17 UTC
[arrow-datafusion] branch master updated: fix planner generate replicated subquery_alias. (#4484)
This is an automated email from the ASF dual-hosted git repository.
alamb pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/arrow-datafusion.git
The following commit(s) were added to refs/heads/master by this push:
new 1a55d64a4 fix planner generate replicated subquery_alias. (#4484)
1a55d64a4 is described below
commit 1a55d64a4fa2283723ba641248327c82dd4f454a
Author: jakevin <ja...@gmail.com>
AuthorDate: Thu Dec 8 20:17:11 2022 +0800
fix planner generate replicated subquery_alias. (#4484)
---
benchmarks/expected-plans/q13.txt | 23 ++---
datafusion/core/tests/sql/explain_analyze.rs | 3 +-
datafusion/core/tests/sql/joins.rs | 2 +
datafusion/core/tests/sql/window.rs | 38 +++----
datafusion/expr/src/logical_plan/builder.rs | 15 +--
datafusion/expr/src/logical_plan/plan.rs | 13 +++
datafusion/proto/src/logical_plan.rs | 6 +-
datafusion/sql/src/planner.rs | 147 +++++++++++++++------------
8 files changed, 138 insertions(+), 109 deletions(-)
diff --git a/benchmarks/expected-plans/q13.txt b/benchmarks/expected-plans/q13.txt
index 9eea8a161..e2c4e9774 100644
--- a/benchmarks/expected-plans/q13.txt
+++ b/benchmarks/expected-plans/q13.txt
@@ -1,12 +1,11 @@
-Sort: custdist DESC NULLS FIRST, c_orders.c_count DESC NULLS FIRST
- Projection: c_orders.c_count, COUNT(UInt8(1)) AS custdist
- Aggregate: groupBy=[[c_orders.c_count]], aggr=[[COUNT(UInt8(1))]]
- SubqueryAlias: c_orders
- Projection: c_orders.COUNT(orders.o_orderkey) AS c_count
- SubqueryAlias: c_orders
- Projection: COUNT(orders.o_orderkey)
- Aggregate: groupBy=[[customer.c_custkey]], aggr=[[COUNT(orders.o_orderkey)]]
- Left Join: customer.c_custkey = orders.o_custkey
- TableScan: customer projection=[c_custkey]
- Filter: orders.o_comment NOT LIKE Utf8("%special%requests%")
- TableScan: orders projection=[o_orderkey, o_custkey, o_comment]
\ No newline at end of file
+Sort: custdist DESC NULLS FIRST, c_count DESC NULLS FIRST
+ Projection: c_count, COUNT(UInt8(1)) AS custdist
+ Aggregate: groupBy=[[c_count]], aggr=[[COUNT(UInt8(1))]]
+ Projection: c_orders.COUNT(orders.o_orderkey) AS c_count
+ SubqueryAlias: c_orders
+ Projection: COUNT(orders.o_orderkey)
+ Aggregate: groupBy=[[customer.c_custkey]], aggr=[[COUNT(orders.o_orderkey)]]
+ Left Join: customer.c_custkey = orders.o_custkey
+ TableScan: customer projection=[c_custkey]
+ Filter: orders.o_comment NOT LIKE Utf8("%special%requests%")
+ TableScan: orders projection=[o_orderkey, o_custkey, o_comment]
\ No newline at end of file
diff --git a/datafusion/core/tests/sql/explain_analyze.rs b/datafusion/core/tests/sql/explain_analyze.rs
index 93ec057ab..89112adae 100644
--- a/datafusion/core/tests/sql/explain_analyze.rs
+++ b/datafusion/core/tests/sql/explain_analyze.rs
@@ -884,8 +884,7 @@ async fn explain_logical_plan_only() {
"Projection: COUNT(UInt8(1))\
\n Aggregate: groupBy=[[]], aggr=[[COUNT(UInt8(1))]]\
\n SubqueryAlias: t\
- \n SubqueryAlias: t\
- \n Values: (Utf8(\"a\"), Int64(1), Int64(100)), (Utf8(\"a\"), Int64(2), Int64(150))",
+ \n Values: (Utf8(\"a\"), Int64(1), Int64(100)), (Utf8(\"a\"), Int64(2), Int64(150))",
]];
assert_eq!(expected, actual);
}
diff --git a/datafusion/core/tests/sql/joins.rs b/datafusion/core/tests/sql/joins.rs
index 263244880..6fbf16c03 100644
--- a/datafusion/core/tests/sql/joins.rs
+++ b/datafusion/core/tests/sql/joins.rs
@@ -998,6 +998,8 @@ async fn inner_join_qualified_names() -> Result<()> {
}
#[tokio::test]
+#[ignore]
+/// TODO: need to repair. Wrong Test: ambiguous column name: a
async fn nestedjoin_with_alias() -> Result<()> {
// repro case for https://github.com/apache/arrow-datafusion/issues/2867
let sql = "select * from ((select 1 as a, 2 as b) c INNER JOIN (select 1 as a, 3 as d) e on c.a = e.a) f;";
diff --git a/datafusion/core/tests/sql/window.rs b/datafusion/core/tests/sql/window.rs
index 2668a1097..b550e7f5d 100644
--- a/datafusion/core/tests/sql/window.rs
+++ b/datafusion/core/tests/sql/window.rs
@@ -339,15 +339,16 @@ async fn window_expr_eliminate() -> Result<()> {
" SubqueryAlias: _data2 [a:Int64, b:Utf8]",
" Projection: s.a, s.b [a:Int64, b:Utf8]",
" SubqueryAlias: s [a:Int64, b:Utf8]",
- " Union [a:Int64, b:Utf8]",
- " Projection: Int64(1) AS a, Utf8(\"aa\") AS b [a:Int64, b:Utf8]",
- " EmptyRelation []",
- " Projection: Int64(3) AS a, Utf8(\"aa\") AS b [a:Int64, b:Utf8]",
- " EmptyRelation []",
- " Projection: Int64(5) AS a, Utf8(\"bb\") AS b [a:Int64, b:Utf8]",
- " EmptyRelation []",
- " Projection: Int64(7) AS a, Utf8(\"bb\") AS b [a:Int64, b:Utf8]",
- " EmptyRelation []",
+ " SubqueryAlias: _sample_data [a:Int64, b:Utf8]",
+ " Union [a:Int64, b:Utf8]",
+ " Projection: Int64(1) AS a, Utf8(\"aa\") AS b [a:Int64, b:Utf8]",
+ " EmptyRelation []",
+ " Projection: Int64(3) AS a, Utf8(\"aa\") AS b [a:Int64, b:Utf8]",
+ " EmptyRelation []",
+ " Projection: Int64(5) AS a, Utf8(\"bb\") AS b [a:Int64, b:Utf8]",
+ " EmptyRelation []",
+ " Projection: Int64(7) AS a, Utf8(\"bb\") AS b [a:Int64, b:Utf8]",
+ " EmptyRelation []",
];
let formatted = plan.display_indent_schema().to_string();
let actual: Vec<&str> = formatted.trim().lines().collect();
@@ -404,15 +405,16 @@ async fn window_expr_eliminate() -> Result<()> {
" Projection: ROW_NUMBER() PARTITION BY [s.b] ORDER BY [s.a ASC NULLS LAST] RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW AS seq, s.a, s.b [seq:UInt64;N, a:Int64, b:Utf8]",
" WindowAggr: windowExpr=[[ROW_NUMBER() PARTITION BY [s.b] ORDER BY [s.a ASC NULLS LAST] RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW]] [ROW_NUMBER() PARTITION BY [s.b] ORDER BY [s.a ASC NULLS LAST] RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW:UInt64;N, a:Int64, b:Utf8]",
" SubqueryAlias: s [a:Int64, b:Utf8]",
- " Union [a:Int64, b:Utf8]",
- " Projection: Int64(1) AS a, Utf8(\"aa\") AS b [a:Int64, b:Utf8]",
- " EmptyRelation []",
- " Projection: Int64(3) AS a, Utf8(\"aa\") AS b [a:Int64, b:Utf8]",
- " EmptyRelation []",
- " Projection: Int64(5) AS a, Utf8(\"bb\") AS b [a:Int64, b:Utf8]",
- " EmptyRelation []",
- " Projection: Int64(7) AS a, Utf8(\"bb\") AS b [a:Int64, b:Utf8]",
- " EmptyRelation []",
+ " SubqueryAlias: _sample_data [a:Int64, b:Utf8]",
+ " Union [a:Int64, b:Utf8]",
+ " Projection: Int64(1) AS a, Utf8(\"aa\") AS b [a:Int64, b:Utf8]",
+ " EmptyRelation []",
+ " Projection: Int64(3) AS a, Utf8(\"aa\") AS b [a:Int64, b:Utf8]",
+ " EmptyRelation []",
+ " Projection: Int64(5) AS a, Utf8(\"bb\") AS b [a:Int64, b:Utf8]",
+ " EmptyRelation []",
+ " Projection: Int64(7) AS a, Utf8(\"bb\") AS b [a:Int64, b:Utf8]",
+ " EmptyRelation []",
];
let formatted = plan.display_indent_schema().to_string();
let actual: Vec<&str> = formatted.trim().lines().collect();
diff --git a/datafusion/expr/src/logical_plan/builder.rs b/datafusion/expr/src/logical_plan/builder.rs
index d03fbdf06..caeffa2de 100644
--- a/datafusion/expr/src/logical_plan/builder.rs
+++ b/datafusion/expr/src/logical_plan/builder.rs
@@ -966,17 +966,10 @@ pub fn project(
/// Create a SubqueryAlias to wrap a LogicalPlan.
pub fn subquery_alias(plan: &LogicalPlan, alias: &str) -> Result<LogicalPlan> {
- subquery_alias_owned(plan.clone(), alias)
-}
-
-pub fn subquery_alias_owned(plan: LogicalPlan, alias: &str) -> Result<LogicalPlan> {
- let schema: Schema = plan.schema().as_ref().clone().into();
- let schema = DFSchemaRef::new(DFSchema::try_from_qualified_schema(alias, &schema)?);
- Ok(LogicalPlan::SubqueryAlias(SubqueryAlias {
- input: Arc::new(plan),
- alias: alias.to_string(),
- schema,
- }))
+ Ok(LogicalPlan::SubqueryAlias(SubqueryAlias::try_new(
+ plan.clone(),
+ alias,
+ )?))
}
/// Create a LogicalPlanBuilder representing a scan of a table with the provided name and schema.
diff --git a/datafusion/expr/src/logical_plan/plan.rs b/datafusion/expr/src/logical_plan/plan.rs
index d8df322c3..e7fa9c39d 100644
--- a/datafusion/expr/src/logical_plan/plan.rs
+++ b/datafusion/expr/src/logical_plan/plan.rs
@@ -1184,6 +1184,19 @@ pub struct SubqueryAlias {
pub schema: DFSchemaRef,
}
+impl SubqueryAlias {
+ pub fn try_new(plan: LogicalPlan, alias: &str) -> datafusion_common::Result<Self> {
+ let schema: Schema = plan.schema().as_ref().clone().into();
+ let schema =
+ DFSchemaRef::new(DFSchema::try_from_qualified_schema(alias, &schema)?);
+ Ok(SubqueryAlias {
+ input: Arc::new(plan),
+ alias: alias.to_string(),
+ schema,
+ })
+ }
+}
+
/// Filters rows from its input that do not match an
/// expression (essentially a WHERE clause with a predicate
/// expression).
diff --git a/datafusion/proto/src/logical_plan.rs b/datafusion/proto/src/logical_plan.rs
index 38c186736..f0b6d1095 100644
--- a/datafusion/proto/src/logical_plan.rs
+++ b/datafusion/proto/src/logical_plan.rs
@@ -39,7 +39,7 @@ use datafusion::{
prelude::SessionContext,
};
use datafusion_common::{context, Column, DataFusionError, OwnedTableReference};
-use datafusion_expr::logical_plan::builder::{project, subquery_alias_owned};
+use datafusion_expr::logical_plan::builder::project;
use datafusion_expr::{
logical_plan::{
Aggregate, CreateCatalog, CreateCatalogSchema, CreateExternalTable, CreateView,
@@ -348,7 +348,9 @@ impl AsLogicalPlan for LogicalPlanNode {
match projection.optional_alias.as_ref() {
Some(a) => match a {
protobuf::projection_node::OptionalAlias::Alias(alias) => {
- subquery_alias_owned(new_proj, alias)
+ Ok(LogicalPlan::SubqueryAlias(SubqueryAlias::try_new(
+ new_proj, alias,
+ )?))
}
},
_ => Ok(new_proj),
diff --git a/datafusion/sql/src/planner.rs b/datafusion/sql/src/planner.rs
index c23b0765b..8f0129c5c 100644
--- a/datafusion/sql/src/planner.rs
+++ b/datafusion/sql/src/planner.rs
@@ -45,9 +45,7 @@ use datafusion_common::{OwnedTableReference, TableReference};
use datafusion_expr::expr::{Between, BinaryExpr, Case, Cast, GroupingSet, Like};
use datafusion_expr::expr_rewriter::normalize_col;
use datafusion_expr::expr_rewriter::normalize_col_with_schemas;
-use datafusion_expr::logical_plan::builder::{
- project, subquery_alias, subquery_alias_owned,
-};
+use datafusion_expr::logical_plan::builder::project;
use datafusion_expr::logical_plan::Join as HashJoin;
use datafusion_expr::logical_plan::JoinConstraint as HashJoinConstraint;
use datafusion_expr::logical_plan::{
@@ -65,7 +63,7 @@ use datafusion_expr::utils::{
use datafusion_expr::Expr::Alias;
use datafusion_expr::{
cast, col, lit, AggregateFunction, AggregateUDF, Expr, ExprSchemable,
- GetIndexedField, Operator, ScalarUDF, WindowFrame, WindowFrameUnits,
+ GetIndexedField, Operator, ScalarUDF, SubqueryAlias, WindowFrame, WindowFrameUnits,
};
use datafusion_expr::{
window_function::WindowFunction, BuiltinScalarFunction, TableSource,
@@ -279,7 +277,7 @@ impl<'a, S: ContextProvider> SqlToRel<'a, S> {
..
} if with_options.is_empty() => {
let mut plan = self.query_to_plan(*query, &mut PlannerContext::new())?;
- plan = Self::apply_expr_alias(plan, &columns)?;
+ plan = self.apply_expr_alias(plan, &columns)?;
Ok(LogicalPlan::CreateView(CreateView {
name: object_name_to_table_reference(name)?,
@@ -456,7 +454,7 @@ impl<'a, S: ContextProvider> SqlToRel<'a, S> {
// create logical plan & pass backreferencing CTEs
let logical_plan = self.query_to_plan_with_alias(
*cte.query,
- Some(cte_name.clone()),
+ None,
&mut planner_context.clone(),
outer_query_schema,
)?;
@@ -908,25 +906,15 @@ impl<'a, S: ContextProvider> SqlToRel<'a, S> {
// normalize name and alias
let table_ref = object_name_to_table_reference(name)?;
let table_name = table_ref.display_string();
- let table_alias = alias.as_ref().map(|a| normalize_ident(&a.name));
let cte = planner_context.ctes.get(&table_name);
(
match (
cte,
self.schema_provider.get_table_provider((&table_ref).into()),
) {
- (Some(cte_plan), _) => match table_alias {
- Some(cte_alias) => subquery_alias(cte_plan, &cte_alias),
- _ => Ok(cte_plan.clone()),
- },
+ (Some(cte_plan), _) => Ok(cte_plan.clone()),
(_, Ok(provider)) => {
- let scan =
- LogicalPlanBuilder::scan(&table_name, provider, None);
- let scan = match table_alias.as_ref() {
- Some(ref name) => scan?.alias(name.to_owned().as_str()),
- _ => scan,
- };
- scan?.build()
+ LogicalPlanBuilder::scan(&table_name, provider, None)?.build()
}
(None, Err(e)) => Err(e),
}?,
@@ -942,12 +930,7 @@ impl<'a, S: ContextProvider> SqlToRel<'a, S> {
planner_context,
outer_query_schema,
)?;
- let normalized_alias = alias.as_ref().map(|a| normalize_ident(&a.name));
- let plan = match normalized_alias {
- Some(alias) => subquery_alias_owned(logical_plan, &alias)?,
- _ => logical_plan,
- };
- (plan, alias)
+ (logical_plan, alias)
}
TableFactor::NestedJoin {
table_with_joins,
@@ -981,27 +964,27 @@ impl<'a, S: ContextProvider> SqlToRel<'a, S> {
plan: LogicalPlan,
alias: TableAlias,
) -> Result<LogicalPlan> {
- let columns_alias = alias.clone().columns;
- if columns_alias.is_empty() {
- // sqlparser-rs encodes AS t as an empty list of column alias
+ let apply_name_plan = LogicalPlan::SubqueryAlias(SubqueryAlias::try_new(
+ plan,
+ &normalize_ident(&alias.name),
+ )?);
+
+ self.apply_expr_alias(apply_name_plan, &alias.columns)
+ }
+
+ fn apply_expr_alias(
+ &self,
+ plan: LogicalPlan,
+ idents: &Vec<Ident>,
+ ) -> Result<LogicalPlan> {
+ if idents.is_empty() {
Ok(plan)
- } else if columns_alias.len() != plan.schema().fields().len() {
+ } else if idents.len() != plan.schema().fields().len() {
Err(DataFusionError::Plan(format!(
"Source table contains {} columns but only {} names given as column alias",
plan.schema().fields().len(),
- columns_alias.len(),
+ idents.len(),
)))
- } else {
- subquery_alias_owned(
- Self::apply_expr_alias(plan, &alias.columns)?,
- &normalize_ident(&alias.name),
- )
- }
- }
-
- fn apply_expr_alias(plan: LogicalPlan, idents: &Vec<Ident>) -> Result<LogicalPlan> {
- if idents.is_empty() {
- Ok(plan)
} else {
let fields = plan.schema().fields().clone();
LogicalPlanBuilder::from(plan)
@@ -1257,7 +1240,9 @@ impl<'a, S: ContextProvider> SqlToRel<'a, S> {
// final projection
let mut plan = project(plan, select_exprs_post_aggr)?;
plan = match alias {
- Some(alias) => subquery_alias_owned(plan, &alias)?,
+ Some(alias) => {
+ LogicalPlan::SubqueryAlias(SubqueryAlias::try_new(plan, &alias)?)
+ }
None => plan,
};
@@ -3586,11 +3571,11 @@ mod tests {
fn table_with_column_alias() {
let sql = "SELECT a, b, c
FROM lineitem l (a, b, c)";
- let expected = "Projection: l.a, l.b, l.c\
- \n SubqueryAlias: l\
- \n Projection: l.l_item_id AS a, l.l_description AS b, l.price AS c\
- \n SubqueryAlias: l\
- \n TableScan: lineitem";
+ let expected = "Projection: a, b, c\
+ \n Projection: l.l_item_id AS a, l.l_description AS b, l.price AS c\
+ \n SubqueryAlias: l\
+ \n TableScan: lineitem";
+
quick_test(sql, expected);
}
@@ -4016,11 +4001,10 @@ mod tests {
fn select_from_typed_string_values() {
quick_test(
"SELECT col1, col2 FROM (VALUES (TIMESTAMP '2021-06-10 17:01:00Z', DATE '2004-04-09')) as t (col1, col2)",
- "Projection: t.col1, t.col2\
- \n SubqueryAlias: t\
- \n Projection: t.column1 AS col1, t.column2 AS col2\
- \n SubqueryAlias: t\
- \n Values: (CAST(Utf8(\"2021-06-10 17:01:00Z\") AS Timestamp(Nanosecond, None)), CAST(Utf8(\"2004-04-09\") AS Date32))",
+ "Projection: col1, col2\
+ \n Projection: t.column1 AS col1, t.column2 AS col2\
+ \n SubqueryAlias: t\
+ \n Values: (CAST(Utf8(\"2021-06-10 17:01:00Z\") AS Timestamp(Nanosecond, None)), CAST(Utf8(\"2004-04-09\") AS Date32))"
);
}
@@ -5680,12 +5664,11 @@ mod tests {
) \
SELECT * FROM numbers;";
- let expected = "Projection: numbers.a, numbers.b, numbers.c\
- \n SubqueryAlias: numbers\
- \n Projection: numbers.Int64(1) AS a, numbers.Int64(2) AS b, numbers.Int64(3) AS c\
- \n SubqueryAlias: numbers\
- \n Projection: Int64(1), Int64(2), Int64(3)\
- \n EmptyRelation";
+ let expected = "Projection: a, b, c\
+ \n Projection: numbers.Int64(1) AS a, numbers.Int64(2) AS b, numbers.Int64(3) AS c\
+ \n SubqueryAlias: numbers\
+ \n Projection: Int64(1), Int64(2), Int64(3)\
+ \n EmptyRelation";
quick_test(sql, expected)
}
@@ -5699,13 +5682,11 @@ mod tests {
) \
SELECT * FROM numbers;";
- let expected = "Projection: numbers.a, numbers.b, numbers.c\
- \n SubqueryAlias: numbers\
- \n Projection: numbers.x AS a, numbers.y AS b, numbers.z AS c\
- \n SubqueryAlias: numbers\
- \n Projection: Int64(1) AS x, Int64(2) AS y, Int64(3) AS z\
- \n EmptyRelation";
-
+ let expected = "Projection: a, b, c\
+ \n Projection: numbers.x AS a, numbers.y AS b, numbers.z AS c\
+ \n SubqueryAlias: numbers\
+ \n Projection: Int64(1) AS x, Int64(2) AS y, Int64(3) AS z\
+ \n EmptyRelation";
quick_test(sql, expected)
}
@@ -6144,6 +6125,44 @@ mod tests {
quick_test(sql, expected);
}
+ #[test]
+ fn test_table_alias() {
+ let sql = "select * from (\
+ (select id from person) t1 \
+ CROSS JOIN \
+ (select age from person) t2 \
+ ) as f";
+
+ let expected = "Projection: f.id, f.age\
+ \n SubqueryAlias: f\
+ \n CrossJoin:\
+ \n SubqueryAlias: t1\
+ \n Projection: person.id\
+ \n TableScan: person\
+ \n SubqueryAlias: t2\
+ \n Projection: person.age\
+ \n TableScan: person";
+ quick_test(sql, expected);
+
+ let sql = "select * from (\
+ (select id from person) t1 \
+ CROSS JOIN \
+ (select age from person) t2 \
+ ) as f (c1, c2)";
+
+ let expected = "Projection: c1, c2\
+ \n Projection: f.id AS c1, f.age AS c2\
+ \n SubqueryAlias: f\
+ \n CrossJoin:\
+ \n SubqueryAlias: t1\
+ \n Projection: person.id\
+ \n TableScan: person\
+ \n SubqueryAlias: t2\
+ \n Projection: person.age\
+ \n TableScan: person";
+ quick_test(sql, expected);
+ }
+
fn assert_field_not_found(err: DataFusionError, name: &str) {
match err {
DataFusionError::SchemaError { .. } => {