[optimize][txn] Optimize transaction lowWaterMark to clean useless data faster #15592
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…ta faster ### Motivation The current implementation mechanism of low water mark is to make a judgment after the end transaction, and only for the first transaction in ongoingTxns. This makes useless data cleaning very slow. ### Modification Store lowWaterMark for tc in TB and TP. Recursively calls lowWaterMark and cleans the data according to the stored lowWaterMarks
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…eless data faster (apache#15592)" This reverts commit 033a3b6.
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…ta faster (apache#15592) (cherry picked from commit fcf5e14)
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…ta faster (apache#15592) (cherry picked from commit fcf5e14) (cherry picked from commit fa78cf8)
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Motivation
The current implementation mechanism of low water mark is to make a judgment after the end transaction, and only for the first transaction in ongoingTxns.
This makes useless data cleaning very slow.
Modification
Store lowWaterMark for tc in TB and TP.
Recursively calls lowWaterMark and cleans the data according to the stored lowWaterMarks
Verifying this change
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This change is a trivial rework / code cleanup without any test coverage.
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