Fix incorrect pushdown of expression below join#13114
Merged
martint merged 2 commits intotrinodb:masterfrom Jul 7, 2022
Merged
Fix incorrect pushdown of expression below join#13114martint merged 2 commits intotrinodb:masterfrom
martint merged 2 commits intotrinodb:masterfrom
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PushInequalityFilterExpressionBelowJoin was incorrectly pushing a projection into the inner side of an outer join. This is an invalid transformation when the outer join produces a null for the columns of the inner table in case of a mismatch and the expression that's pushed down does not preserve nulls.
martint
approved these changes
Jul 7, 2022
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PushInequalityFilterExpressionBelowJoin was incorrectly
pushing a projection into the inner side of an outer join.
This is an invalid transformation when the outer join produces
a null for the columns of the inner table in case of a mismatch
and the expression that's pushed down does not preserve nulls.
Fixes #13109
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