expression: fix wrong collation for concat function (#24297)
#24301
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Signed-off-by: ti-srebot <ti-srebot@pingcap.com>
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/run-all-tests |
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@xiongjiwei you're already a collaborator in bot's repo. |
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/LGTM |
wjhuang2016
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Apr 27, 2021
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/merge |
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This pull request has been accepted and is ready to merge. Commit hash: 675f854
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zhouqiang-cl
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wjhuang2016
approved these changes
May 26, 2021
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/merge |
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/run-unit-test |
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cherry-pick #24297 to release-5.0
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# In tidb repo: git pr https://github.com/pingcap/tidb/pull/24301After apply modifications, you can push your change to this PR via:
What problem does this PR solve?
Issue Number: close #24296
Problem Summary:
use connection charset and collation if function arg has no explicit collation.
Release note