dongjoon-hyun commented on a change in pull request #24949:
[SPARK-28002][SQL][FOLLOWUP] Add more WITH test cases
URL: https://github.com/apache/spark/pull/24949#discussion_r300580542
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
##########
@@ -129,7 +129,12 @@ class AstBuilder(conf: SQLConf) extends
SqlBaseBaseVisitor[AnyRef] with Logging
(namedQuery.alias, namedQuery)
}
// Check for duplicate names.
- checkDuplicateKeys(ctes, ctx)
+ val duplicates = ctes.groupBy(_._1).filter(_._2.size > 1).keys
+ if (duplicates.nonEmpty) {
+ throw new ParseException(
Review comment:
Actually, this is the more important change than `adding test case`. Could
you update the PR title?
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