txn: change IsUnnecessaryKeyValue interface to report error(390) #398
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… situations Signed-off-by: cfzjywxk <lsswxrxr@163.com>
cfzjywxk
changed the title
sticnarf
approved these changes
Dec 21, 2021
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ref: 30410
Try to cherry-pick #390 to tidb-5.2 release branch.
Signed-off-by: cfzjywxk lsswxrxr@163.com