Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/14657#discussion_r75240139
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/basicLogicalOperators.scala
---
@@ -693,7 +694,11 @@ case class LocalLimit(limitExpr: Expression, child:
LogicalPlan) extends UnaryNo
}
}
-case class SubqueryAlias(alias: String, child: LogicalPlan) extends
UnaryNode {
+case class SubqueryAlias(
--- End diff --
we should document that, if the `view` is not None, the child will be a
logical plan for a view.
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