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planner: fix appropriate index stats may be missed when estimating NDV for inner side of index join #42261
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What problem does this PR solve?
Issue Number: ref #31316 #41996
Problem Summary:
Slices are passed to
slices.Equal
without sorting caused by carelessness.This won't cause any real problems. It just makes #41996 not as effective as expected.
What is changed and how it works?
Pass the ordered slice to
slices.Equal
.Check List
Tests
Side effects
Documentation
Release note
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