LantaoJin commented on a change in pull request #27185: [SPARK-30494][SQL]
Avoid duplicated cached RDD when create or replace an existing view
URL: https://github.com/apache/spark/pull/27185#discussion_r365663674
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/command/views.scala
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@@ -125,6 +132,9 @@ case class CreateViewCommand(
val viewIdent = tableMetadata.identifier
checkCyclicViewReference(analyzedPlan, Seq(viewIdent), viewIdent)
+ // uncache the cached data before replacing an exists view
+ sparkSession.catalog.uncacheTable(viewIdent.quotedString)
Review comment:
FYI. There is a condition } else if (replace) { in line 130.
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