MaxGekk commented on code in PR #10630:
URL: https://github.com/apache/spark/pull/10630#discussion_r1243340303
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/CheckAnalysis.scala:
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@@ -214,12 +214,22 @@ trait CheckAnalysis {
s"""Only a single table generating function is allowed in a
SELECT clause, found:
| ${exprs.map(_.prettyString).mkString(",")}""".stripMargin)
- // Special handling for cases when self-join introduce duplicate
expression ids.
- case j @ Join(left, right, _, _) if
left.outputSet.intersect(right.outputSet).nonEmpty =>
- val conflictingAttributes =
left.outputSet.intersect(right.outputSet)
+ case j: Join if !j.duplicateResolved =>
+ val conflictingAttributes =
j.left.outputSet.intersect(j.right.outputSet)
failAnalysis(
s"""
- |Failure when resolving conflicting references in Join:
Review Comment:
Can users observe the error? or it can be considered as an internal errors?
BTW, we are about to convert it to an internal error in the PR:
https://github.com/apache/spark/pull/41476
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