Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/17770#discussion_r115408985
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
---
@@ -670,7 +671,9 @@ class Analyzer(
* Generate a new logical plan for the right child with different
expression IDs
* for all conflicting attributes.
*/
- private def dedupRight (left: LogicalPlan, right: LogicalPlan):
LogicalPlan = {
+ private def dedupRight (left: LogicalPlan, oriRight: LogicalPlan):
LogicalPlan = {
+ // Remove analysis barrier if any.
+ val right = CleanupBarriers(oriRight)
--- End diff --
shall we still keep the `AnalysisBarrier` for the right side?
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