maropu commented on a change in pull request #32616:
URL: https://github.com/apache/spark/pull/32616#discussion_r636598360
##########
File path: sql/core/src/main/scala/org/apache/spark/sql/Dataset.scala
##########
@@ -231,9 +231,10 @@ class Dataset[T] private[sql](
case _ =>
queryExecution.analyzed
}
- if
(sparkSession.sessionState.conf.getConf(SQLConf.FAIL_AMBIGUOUS_SELF_JOIN_ENABLED)
&&
- plan.getTagValue(Dataset.DATASET_ID_TAG).isEmpty) {
- plan.setTagValue(Dataset.DATASET_ID_TAG, id)
+ if
(sparkSession.sessionState.conf.getConf(SQLConf.FAIL_AMBIGUOUS_SELF_JOIN_ENABLED))
{
+ val dsIds = plan.getTagValue(Dataset.DATASET_ID_TAG).getOrElse(new
HashSet[Long])
+ dsIds.add(id)
Review comment:
Q: Is there the possibility that the set will continue to increase in a
long-running application?
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