beliefer commented on code in PR #42317:
URL: https://github.com/apache/spark/pull/42317#discussion_r1360494759
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/InjectRuntimeFilter.scala:
##########
@@ -143,41 +143,62 @@ object InjectRuntimeFilter extends Rule[LogicalPlan] with
PredicateHelper with J
referencedExprs.map(_.references).foldLeft(AttributeSet.empty)(_
++ _),
hasHitFilter,
hasHitSelectiveFilter,
- currentPlan)
+ currentPlan,
+ targetCreationSideExpr)
} else {
None
}
case Project(_, child) =>
assert(predicateReference.isEmpty && !hasHitSelectiveFilter)
- extract(child, predicateReference, hasHitFilter,
hasHitSelectiveFilter, currentPlan)
+ extract(child, predicateReference, hasHitFilter,
hasHitSelectiveFilter, currentPlan,
+ targetCreationSideExpr)
case Filter(condition, child) if isSimpleExpression(condition) =>
extract(
child,
predicateReference ++ condition.references,
hasHitFilter = true,
hasHitSelectiveFilter = hasHitSelectiveFilter ||
isLikelySelective(condition),
- currentPlan)
- case ExtractEquiJoinKeys(_, _, _, _, _, left, right, _) =>
+ currentPlan,
+ targetCreationSideExpr)
+ case ExtractEquiJoinKeys(_, lkeys, rkeys, _, _, left, right, _) =>
// Runtime filters use one side of the [[Join]] to build a set of join
key values and prune
// the other side of the [[Join]]. It's also OK to use a superset of
the join key values
// (ignore null values) to do the pruning.
if (left.output.exists(_.semanticEquals(filterCreationSideKey))) {
extract(left, AttributeSet.empty,
- hasHitFilter = false, hasHitSelectiveFilter = false, currentPlan =
left)
+ hasHitFilter = false, hasHitSelectiveFilter = false, currentPlan =
left,
+ targetCreationSideExpr = targetCreationSideExpr).orElse {
+ // We can also extract from the right side if the join keys are
transitive.
+
lkeys.zip(rkeys).find(_._1.semanticEquals(targetCreationSideExpr)).map(_._2)
+ .flatMap { passedFilterCreationSideExp =>
+ extract(right, AttributeSet.empty,
Review Comment:
Because `PushDownPredicates` works before this rule.
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