planner: fix wrong columns pruning for partition union all (#19527) #19546
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Signed-off-by: ti-srebot <ti-srebot@pingcap.com>
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/run-all-tests |
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Some unrelated codes are bring in, please update the PR @lzmhhh123 |
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LGTM |
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/merge |
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Your auto merge job has been accepted, waiting for:
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cherry-pick #19527 to release-4.0
What problem does this PR solve?
Issue Number: close #19450, close #19161
Problem Summary: It's a bug-fix for release-4.0
What is changed and how it works?
How it Works: when clone datasource, clone its schema.
Related changes
Check List
Tests
Side effects
Release note