expression: support collation for REGEXP function (#17255) #17581
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Signed-off-by: sre-bot <sre-bot@pingcap.com>
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/run-all-tests |
sre-bot
added
component/expression
type/4.0-cherry-pick
type/bugfix
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/run-all-tests tidb-test=pr/1061 |
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cherry-pick #17255 to release-4.0
What problem does this PR solve?
Issue Number: close #17094
Problem Summary:
Previously, we didn't handle collation when builds the REGEXP function.
What is changed and how it works?
If the collation is case-insensitive, we compile it by
regexp.Compile("(?i)" + pat).If not, we compile it by
regexp.CompileRelated changes
Check List
Tests
Side effects
Release note