stevenzwu commented on code in PR #16692:
URL: https://github.com/apache/iceberg/pull/16692#discussion_r3597592401
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spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/sql/TestFilterPushDown.java:
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@@ -647,6 +648,47 @@ public void testVariantExtractFiltering() {
});
}
+ @TestTemplate
+ public void testFilterPushdownOnInitialDefaultColumnAbsentFromFile() {
Review Comment:
> So in the case there's a nested field with a non-null default but the
ancestor is missing, and the filter only contains a predicate on this specific
nested field we end up applying the default value unconditionally rather than
using null as we should.
<img width="795" height="420" alt="image"
src="https://github.com/user-attachments/assets/771d2d33-9d02-47ad-9107-4fc8f11ccb85";
/>
We are talking about the first row from the spec. I am good with taking it
as a separate follow-up.
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