pvary commented on code in PR #15675:
URL: https://github.com/apache/iceberg/pull/15675#discussion_r3093077035
##########
data/src/test/java/org/apache/iceberg/data/BaseFormatModelTests.java:
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@@ -609,6 +622,57 @@ 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;
+
+ int maxFieldId =
+
writeSchema.columns().stream().mapToInt(Types.NestedField::fieldId).max().orElse(0);
+
+ List<Types.NestedField> evolvedColumns =
Lists.newArrayList(writeSchema.columns());
+ evolvedColumns.add(
+ Types.NestedField.required("col_f")
+ .withId(maxFieldId + 1)
+ .ofType(Types.StringType.get())
+ .withInitialDefault(Literal.of(defaultStringValue))
+ .build());
+ evolvedColumns.add(
Review Comment:
Could we add a default value to a map and to a list item as well?
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