stats: fix merge cm sketch panic (#13391) #13394
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/run-all-tests |
sre-bot
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component/statistics
type/3.0 cherry-pick
type/bugfix
jackysp
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the
status/can-merge
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Your auto merge job has been accepted, waiting for 13278, 12729, 13395 |
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/run-all-tests |
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cherry-pick #13391 to release-3.0
What problem does this PR solve?
Fast analyze on multi-column indexes will panic when merge cm sketches when there are no samples.
What is changed and how it works?
Check if the cm sketch is nil when merging them.
Check List
Tests
Code changes
Side effects
Related changes
Release note