perf: avoid JVM shuffle when sandwiched between non-Comet operators [WIP]#4010

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andygrove wants to merge 7 commits intoapache:mainfrom

andygrove:avoid-jvm-shuffle-for-jvm-parent

Commits on Apr 18, 2026

Commits on Apr 20, 2026

feat: avoid JVM shuffle when sandwiched between non-Comet operators
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Merge remote-tracking branch 'apache/main' into avoid-jvm-shuffle-for-jvm-parent
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fix: narrow revert-to-Spark-shuffle match to HashAggregate parents
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Commits on Apr 21, 2026

fix: tag reverted shuffle so AQE stage re-planning does not reintroduce Comet columnar shuffle
andygrove
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