Fix #16552: adjust join condition sequence #16943
Merged
+15
−5
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This pr tries to fix #16552 with just one simple idea: JoinCondition may be faster, so it should be executed first instead of arbitrary expressions.
And I have some doubts when checking this issue:
Does the order of filter expressions in sql have to be respected if any expression
CanThrow() == true
?If not, then
ExpressionHeuristics
shouldn't skip optimising filter expression sequence as modified in #14672If indeed it needs to do so, then
LogicalComparisonJoin::ExtractJoinConditions
shouldn't split expressions byLogicalFilter::SplitPredicates(expressions)
because this method doesn't keep original expressions sequence.