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Avoid updating the same rows multiple times with simple_update_many_txn. #16609
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DMRobertson
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Nov 7, 2023
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DMRobertson
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Looking forward to the universal 2x speedup. (/s)
More seriously: nice find.
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Right now when we use
simple_update_many_txn(orsimple_update_many) it appends the arguments twice meaning each row is found and updated twice.I noticed this while writing the tests in #16596.
Logic has existed since it was added in #12252.
This is used when:
set_device_id_for_pushersbackground update.