Github user adrian-wang commented on a diff in the pull request:
https://github.com/apache/spark/pull/4865#discussion_r28200558
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/basicOperators.scala
---
@@ -125,7 +125,8 @@ case class InsertIntoTable(
table: LogicalPlan,
partition: Map[String, Option[String]],
child: LogicalPlan,
- overwrite: Boolean)
+ overwrite: Boolean,
+ ifNotExists: Boolean)
--- End diff --
Actually ifNotExists can only be true when overwrite is true... It seems
confusing but really, you can check the description of this pr.
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