Guosmilesmile commented on code in PR #15675:
URL: https://github.com/apache/iceberg/pull/15675#discussion_r3090577374
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data/src/test/java/org/apache/iceberg/data/BaseFormatModelTests.java:
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@@ -609,6 +622,69 @@ void testReaderBuilderReuseContainers(FileFormat
fileFormat) throws IOException
reuseRecords.forEach(r -> assertThat(r).isSameAs(reuseRecords.get(0)));
}
+ @ParameterizedTest
+ @FieldSource("FILE_FORMATS")
+ void testReaderSchemaEvolutionNewColumnWithDefault(FileFormat fileFormat)
throws IOException {
+
+ assumeSupports(fileFormat, FEATURE_READER_DEFAULT);
+ DataGenerator dataGenerator = new DataGenerators.DefaultSchema();
+ Schema writeSchema = dataGenerator.schema();
+
+ List<Record> genericRecords = dataGenerator.generateRecords();
+ writeGenericRecords(fileFormat, writeSchema, genericRecords);
+
+ String defaultStringValue = "default_value";
+ int defaultIntValue = 42;
+
+ Schema evolvedSchema =
+ new Schema(
+ Types.NestedField.required(1, "col_a", Types.StringType.get()),
+ Types.NestedField.required(2, "col_b", Types.IntegerType.get()),
+ Types.NestedField.required(3, "col_c", Types.LongType.get()),
+ Types.NestedField.required(4, "col_d", Types.FloatType.get()),
+ Types.NestedField.required(5, "col_e", Types.DoubleType.get()),
+ Types.NestedField.required("col_f")
+ .withId(6)
+ .ofType(Types.StringType.get())
+ .withInitialDefault(Literal.of(defaultStringValue))
+ .build(),
+ Types.NestedField.optional("col_g")
+ .withId(7)
+ .ofType(Types.IntegerType.get())
+ .withInitialDefault(Literal.of(defaultIntValue))
+ .build());
Review Comment:
Instead of re-hardcoding the copy, I added new fields based on writeSchema.
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