statistics, executor: refactor statistics on columns #21817
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/uncc hanfei1991 |
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/cc winoros |
time-and-fate
commented
Dec 15, 2020
| @@ -275,7 +275,7 @@ func (s *testStatisticsSuite) TestBuild(c *C) { | |||
| count = col.BetweenRowCount(types.NewIntDatum(3000), types.NewIntDatum(3500)) | |||
| c.Check(int(count), Equals, 4994) | |||
| count = col.lessRowCount(types.NewIntDatum(1)) | |||
| c.Check(int(count), Equals, 9) | |||
| c.Check(int(count), Equals, 5) | |||
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This result changed because a small bug about float precision is fixed in statistics/builder.go L149
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/run-all-tests |
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/merge |
ti-srebot
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/run-all-tests |
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What problem does this PR solve?
Issue Number: close #21537
What is changed and how it works?
Please see #21537 for details.
Check List
Tests
Release note