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apache / datafusion-comet Public

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fix(spark) CTAS with UNION in Spark 4.x native writer#3524

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Shekharrajak wants to merge 5 commits into

apache:mainapache/datafusion-comet:mainfrom

Shekharrajak:fix/3429-spark4-ctas-union-native-writerShekharrajak/datafusion-comet:fix/3429-spark4-ctas-union-native-writerCopy head branch name to clipboard

Conversation Commits5 (5)Checks Files changed

Open

fix(spark) CTAS with UNION in Spark 4.x native writer#3524
Shekharrajak wants to merge 5 commits into
apache:mainfrom
Shekharrajak:fix/3429-spark4-ctas-union-native-writer

Commits

Commits on May 21, 2026

Fix CTAS with UNION in Spark 4.x native writer (#3429)
Shekharrajak
committed
Fix row count in union+coalesce write test
Shekharrajak
committed
Fix union tests to use parquet sources instead of SQL literals
Shekharrajak
committed

Commits on May 22, 2026

Whitelist Arrow-producing CometExec subclasses for native writer
Shekharrajak
committed
Add regression test: native writer rejects non-Arrow CometExec children
Shekharrajak
committed

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