expression: fix a bug that hex function return the wrong result if the type of column is binary string (#17590) #17620
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Signed-off-by: sre-bot <sre-bot@pingcap.com>
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/run-all-tests |
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component/expression
type/4.0-cherry-pick
type/bugfix
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cherry-pick #17590 to release-4.0
Signed-off-by: wjhuang2016 huangwenjun1997@gmail.com
What problem does this PR solve?
Issue Number: close #17589
Problem Summary:
We didn't set charset and collation for the hex function properly.
What is changed and how it works?
What's Changed:
Set the resulting charset and collation to connection charset and collation for hex function.
Related changes
Check List
Tests
Side effects
Release note