fix mutil_uniq (#2650) #2665
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fix mutil_uniq (#2650) #2665
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shiyuhang0
approved these changes
Mar 23, 2023
Daemonxiao
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Mar 23, 2023
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/run-all-tests |
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/merge |
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This is an automated cherry-pick of #2650
What problem does this PR solve?
close #2649
What is changed and how it works?
The behavior of other version/client
TiSpark lacks the necessary information to judge if it can pass unique. So we just delete it.
Lack unique in indexscan only slows the performance but does not influence the correct. See the pr's comment for more details pingcap/tidb#29650