cloud-fan commented on code in PR #44988:
URL: https://github.com/apache/spark/pull/44988#discussion_r1475432376
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/DynamicPruning.scala:
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@@ -67,10 +67,12 @@ case class DynamicPruningSubquery(
buildQuery.resolved &&
buildKeys.nonEmpty &&
buildKeys.forall(_.resolved) &&
- broadcastKeyIndex >= 0 &&
- broadcastKeyIndex < buildKeys.size &&
+ broadcastKeyIndices.forall(idx => idx >= 0 && idx < buildKeys.size) &&
buildKeys.forall(_.references.subsetOf(buildQuery.outputSet)) &&
- pruningKey.dataType == buildKeys(broadcastKeyIndex).dataType
+ // DynamicPruningSubquery should only have a single broadcasting key
since
+ // there are no usage for multiple broadcasting keys at the moment.
+ broadcastKeyIndices.size == 1 &&
+ child.dataType == buildKeys(broadcastKeyIndices.head).dataType
Review Comment:
although `def child: Expression = pruningKey`, shall we still keep
`pruningKey.dataType` as before?
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