peter-toth commented on code in PR #52067:
URL: https://github.com/apache/spark/pull/52067#discussion_r2285378810
##########
sql/core/src/main/scala/org/apache/spark/sql/execution/joins/ShuffledHashJoinExec.scala:
##########
@@ -67,12 +67,7 @@ case class ShuffledHashJoinExec(
// Exposed for testing
@transient lazy val ignoreDuplicatedKey = joinType match {
- case LeftExistence(_) =>
- // For building hash relation, ignore duplicated rows with same join
keys if:
- // 1. Join condition is empty, or
- // 2. Join condition only references streamed attributes and build join
keys.
- val streamedOutputAndBuildKeys = AttributeSet(streamedOutput ++
buildKeys)
- condition.forall(_.references.subsetOf(streamedOutputAndBuildKeys))
+ case LeftExistence(_) if condition.isEmpty => true
Review Comment:
Or maybe something like:
```
val streamedOutputSet = AttributeSet(streamedOutput)
val buildKeysSet = ExpressionSet(buildKeys)
condition.forall { c =>
var valid = true
c.transformDownWithPruning(c => valid &&
!buildKeysSet.contains(c.asInstanceOf[Expression])) {
case a: Attribute if !streamedOutputSet.contains(a) =>
valid = false
a
}
valid
}
```
to allow full expression of `buildKeys` to appear in condition.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
