ddl: fix exchange partition check on empty foreign keys #51834
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Signed-off-by: Yang Keao <[email protected]>
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Codecov Report
Additional details and impacted files@@ Coverage Diff @@
## release-6.5-20240316-v6.5.5 #51834 +/- ##
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Coverage ? 73.6796%
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Files ? 1084
Lines ? 348305
Branches ? 0
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Hits ? 256630
Misses ? 75214
Partials ? 16461 |
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This is an automated cherry-pick of #51808
What problem does this PR solve?
Issue Number: close #51807, close #51762
Problem Summary:
If the foreign key is an empty slice, the condition
nt.ForeignKeys != nilwill meet. It would be better to assert it withlen(nt.ForeignKeys) > 0What changed and how does it work?
Change
nt.ForeignKeys != niltolen(nt.ForeignKeys) > 0.Actually, I wonder whether there are other similar issues in TiDB. It's very likely to have bugs in similar pattern 🤔 .
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