Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/14132#discussion_r70937541
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/basicLogicalOperators.scala
---
@@ -354,6 +354,14 @@ case class BroadcastHint(child: LogicalPlan) extends
UnaryNode {
override lazy val statistics: Statistics =
super.statistics.copy(isBroadcastable = true)
}
+/**
+ * A general hint for the child.
+ * a pair of (name, parameters).
--- End diff --
`a` -> `A`. I think we still can disclose more info about this logical node.
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