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[SPARK-35791][SQL] Release on-going map properly for NULL-aware ANTI join #32939

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[SPARK-35791][SQL] Release on-going map properly for NULL-aware ANTI join #32939

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2 changes: 2 additions & 0 deletions sql/core/src/main/scala/org/apache/spark/sql/execution/joins/HashedRelation.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -479,6 +479,7 @@ private[joins] object UnsafeHashedRelation {
throw QueryExecutionErrors.cannotAcquireMemoryToBuildUnsafeHashedRelationError()
}
} else if (isNullAware) {
binaryMap.free()
return HashedRelationWithAllNullKeys
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shall we return it before creating the binary map?

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@cloud-fan - the NULL-aware ANTI join will be done if there's row with NULL join keys. Note the if (!key.anyNull || allowsNullKey) at line 472. So it will be taking effect when we reading the row with NULL join keys, and this information is not known before creating the binary map

}
}
Expand Down Expand Up @@ -1060,6 +1061,7 @@ private[joins] object LongHashedRelation {
val key = rowKey.getLong(0)
map.append(key, unsafeRow)
} else if (isNullAware) {
map.free()
return HashedRelationWithAllNullKeys
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ditto

}
}
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