anoopj commented on code in PR #18740:
URL: https://github.com/apache/iceberg/pull/18740#discussion_r4444194345
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core/src/test/java/org/apache/iceberg/TestFilePlanner.java:
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@@ -273,6 +274,58 @@ void filterHonorsCaseSensitivity(FileFormat format) throws
IOException {
.hasMessageContaining("Cannot find field 'ID'");
}
+ @ParameterizedTest
+ @FieldSource("MANIFEST_FORMATS")
+ void columnStatsOmittedByDefault(FileFormat format) throws IOException {
+ ManifestFile root =
+ writeManifest(
+ format, EMPTY_PARTITION,
ImmutableList.of(dataFileWithStats(FILE_A, idStats(0, 99))));
+
+ DataFile file = Iterables.getOnlyElement(plan(root,
UNPARTITIONED_SPECS)).file();
+
+ assertThat(file.lowerBounds())
+ .as("no column stats are returned unless projectStats requests them")
+ .isNull();
+ assertThat(file.valueCounts()).as("value counts are also omitted by
default").isNull();
+ }
+
+ @ParameterizedTest
+ @FieldSource("MANIFEST_FORMATS")
+ void projectStatsForwardedToRootAndLeafReaders(FileFormat format) throws
IOException {
Review Comment:
renamed to `taskOmitsStatsUnlessProjected`. I went with "projected" to
match the `projectStats(...)` API verb.
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