Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/10494#discussion_r49028348
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/trees/TreeNode.scala
---
@@ -397,6 +393,7 @@ abstract class TreeNode[BaseType <: TreeNode[BaseType]]
extends Product {
def argString: String = productIterator.flatMap {
case tn: TreeNode[_] if containsChild(tn) => Nil
case tn: TreeNode[_] => s"${tn.simpleString}" :: Nil
+ case seq: Seq[_] if seq == Seq.empty => "[Empty]" :: Nil
--- End diff --
Thank you! Any suggestion or hint? Or should we revert it back to the
original fix? Only overwrite the two Leaf Nodes `LocalTableScan` and
`LocalRelation`?
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