cloud-fan commented on a change in pull request #27579: [SPARK-30829][SQL]
Define LegacyBehaviorPolicy enumeration as the common value for result change
configs
URL: https://github.com/apache/spark/pull/27579#discussion_r379391745
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/CTESubstitution.scala
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@@ -54,8 +54,8 @@ object CTESubstitution extends Rule[LogicalPlan] {
case (cteName, _) =>
if (cteNames.contains(cteName)) {
throw new AnalysisException(s"Name $cteName is ambiguous in
nested CTE. " +
- s"Please set ${LEGACY_CTE_PRECEDENCE_ENABLED.key} to false so
that name defined " +
- "in inner CTE takes precedence. See more details in
SPARK-28228.")
+ s"Please set ${LEGACY_CTE_PRECEDENCE_POLICY.key} to
NEW_BEHAVIOR so that name " +
+ "defined in inner CTE takes precedence. See more details in
SPARK-28228.")
Review comment:
since it's enum now, maybe also explain what will happen if set it to legacy.
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