planner: fix wrong agg function when agg push down union (#17022) #17326
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Signed-off-by: sre-bot <sre-bot@pingcap.com>
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/run-all-tests |
sre-bot
added
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Not a problem in release-3.0 |
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cherry-pick #17022 to release-3.0
What problem does this PR solve?
Issue Number: close #16861
Problem Summary: when the aggregation is pushed down the union, we should append the first row for group by items.
What is changed and how it works?
What's Changed: append the first row when the partial aggregation is built under the union.
Related changes
Check List
Tests
Side effects
Release note
Fix the panic when aggregation push down enable on the partition table.