Github user kiszk commented on a diff in the pull request:
https://github.com/apache/spark/pull/11301#discussion_r55633640
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/trees/TreeNode.scala
---
@@ -418,6 +419,13 @@ abstract class TreeNode[BaseType <:
TreeNode[BaseType]] extends Product {
override def toString: String = treeString
+ def toOriginString: String =
+ if (this.origin.callSite.isDefined &&
!this.isInstanceOf[BoundReference]) {
--- End diff --
According to my understanding, ```BoundReference``` is created during a
code generation that is not correlated with an expression parsing. If we refer
to ```origin``` in ```BoundReference``` that keeps the value of
```CurrentOrigin```, the result of ```toOrigingString``` may be incorrect.
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