planner: add nil check when handling empty charset in setUnionFlen (#40429)
#56037
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Signed-off-by: ti-chi-bot <ti-community-prow-bot@tidb.io>
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Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## release-6.5 #56037 +/- ##
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Coverage ? 73.6223%
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Files ? 1097
Lines ? 352882
Branches ? 0
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Hits ? 259800
Misses ? 76360
Partials ? 16722 |
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Sep 12, 2024
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: time-and-fate, winoros The full list of commands accepted by this bot can be found here. The pull request process is described here
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This is an automated cherry-pick of #40429
What problem does this PR solve?
Issue Number: close #40285
What is changed and how it works?
Add a nil check.
Check List
Tests
Side effects
Documentation
Release note
Please refer to Release Notes Language Style Guide to write a quality release note.