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Posted to issues@iceberg.apache.org by GitBox <gi...@apache.org> on 2020/07/23 03:15:00 UTC
[GitHub] [iceberg] shardulm94 commented on a change in pull request #1208: ORC: Add name mapping support
shardulm94 commented on a change in pull request #1208:
URL: https://github.com/apache/iceberg/pull/1208#discussion_r459193057
##########
File path: orc/src/test/java/org/apache/iceberg/orc/TestORCSchemaUtil.java
##########
@@ -269,4 +278,68 @@ public void testSkipNonIcebergColumns() {
);
assertEquals("Schemas must match.", expectedSchema2.asStruct(), icebergSchema2.asStruct());
}
+
+ @Test
+ public void testHasIds() {
+ Schema schema = new Schema(
+ optional(1, "data", Types.StructType.of(
+ optional(10, "entries", Types.MapType.ofOptional(11, 12, Types.StringType.get(), Types.DateType.get()))
+ )),
+ optional(2, "intCol", Types.IntegerType.get()),
+ optional(3, "longCol", Types.LongType.get()),
+ optional(4, "listCol", Types.ListType.ofOptional(40, Types.DoubleType.get()))
+ );
+
+ TypeDescription orcSchema = ORCSchemaUtil.removeIds(ORCSchemaUtil.convert(schema));
+ assertFalse("Should not have Ids", ORCSchemaUtil.hasIds(orcSchema));
+
+ TypeDescription map2Col = TypeDescription.createMap(TypeDescription.createString(), TypeDescription.createBinary());
+ map2Col.setAttribute(ICEBERG_ID_ATTRIBUTE, "4");
+ orcSchema.addField("map2Col", map2Col);
+ assertTrue("Should have Ids after adding one type with Id", ORCSchemaUtil.hasIds(orcSchema));
+ }
+
+ @Test
+ public void tetsAssignIdsByNameMapping() {
+ Types.StructType structType = Types.StructType.of(
+ required(0, "id", Types.LongType.get()),
+ optional(1, "list_of_maps",
+ Types.ListType.ofOptional(2, Types.MapType.ofOptional(3, 4,
+ Types.StringType.get(),
+ SUPPORTED_PRIMITIVES))),
+ optional(5, "map_of_lists",
+ Types.MapType.ofOptional(6, 7,
+ Types.StringType.get(),
+ Types.ListType.ofOptional(8, SUPPORTED_PRIMITIVES))),
+ required(9, "list_of_lists",
+ Types.ListType.ofOptional(10, Types.ListType.ofOptional(11, SUPPORTED_PRIMITIVES))),
+ required(12, "map_of_maps",
+ Types.MapType.ofOptional(13, 14,
+ Types.StringType.get(),
+ Types.MapType.ofOptional(15, 16,
+ Types.StringType.get(),
+ SUPPORTED_PRIMITIVES))),
+ required(17, "list_of_struct_of_nested_types", Types.ListType.ofOptional(19, Types.StructType.of(
+ Types.NestedField.required(20, "m1", Types.MapType.ofOptional(21, 22,
+ Types.StringType.get(),
+ SUPPORTED_PRIMITIVES)),
+ Types.NestedField.optional(23, "l1", Types.ListType.ofRequired(24, SUPPORTED_PRIMITIVES)),
+ Types.NestedField.required(25, "l2", Types.ListType.ofRequired(26, SUPPORTED_PRIMITIVES)),
+ Types.NestedField.optional(27, "m2", Types.MapType.ofOptional(28, 29,
+ Types.StringType.get(),
+ SUPPORTED_PRIMITIVES))
+ )))
+ );
+
+ Schema schema = new Schema(TypeUtil.assignFreshIds(structType, new AtomicInteger(0)::incrementAndGet)
+ .asStructType().fields());
+
+ NameMapping nameMapping = MappingUtil.create(schema);
+ TypeDescription typeDescriptionWithIds = ORCSchemaUtil.convert(schema);
+ TypeDescription typeDescriptionWithIdsFromNameMapping = ORCSchemaUtil
+ .applyNameMapping(ORCSchemaUtil.removeIds(typeDescriptionWithIds), nameMapping);
+
+ assertTrue("TypeDescription schemas should be equal, not comparing Attributes",
+ typeDescriptionWithIds.equals(typeDescriptionWithIdsFromNameMapping, false /* checkAttributes */));
Review comment:
If we are not comparing the attributes here, is there any value to adding this assert? Seems like name mapping's effect (assign ids) is not actually being tested in this case.
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