[AURON #2429] Add missing fallback coverage for Iceberg changelog native scan#2430
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…og native scan Signed-off-by: weimingdiit <weimingdiit@gmail.com>
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Which issue does this PR close?
Closes #2429
Rationale for this change
Auron Iceberg native changelog scan is intentionally limited to insert-only changelog tasks with a single supported file format.
Existing tests cover insert-only changelog correctness, changelog metadata columns, and delete changelog fallback. This PR adds coverage for two remaining unsupported boundaries: non-insert changelog operations and mixed file formats.
What changes are included in this PR?
Adds a changelog fallback test for unsupported changelog operations.
Adds a changelog fallback test for mixed Parquet/ORC file formats.
Both tests compare results with Spark execution and verify that
NativeIcebergTableScanis not used.No execution logic is changed.
Are there any user-facing changes?
No user-facing changes. This is a test-only change.
How was this patch tested?
UT.
Was this patch authored or co-authored using generative AI tooling?