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[Spark] Retain the last watermark of a source with no update in the batch - #39823

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Eliaaazzz wants to merge 3 commits into
apache:masterfrom
Eliaaazzz:spark-watermark-idle-source
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[Spark] Retain the last watermark of a source with no update in the batch#39823
Eliaaazzz wants to merge 3 commits into
apache:masterfrom
Eliaaazzz:spark-watermark-idle-source

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Commits on Aug 20, 2026

Commits on Sep 3, 2026