xuanyuanking commented on a change in pull request #27454: [SPARK-28228][SQL]
Change the default behavior for name conflict in nested WITH clause
URL: https://github.com/apache/spark/pull/27454#discussion_r376676128
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
##########
@@ -2077,9 +2077,11 @@ object SQLConf {
val LEGACY_CTE_PRECEDENCE_ENABLED =
buildConf("spark.sql.legacy.ctePrecedence.enabled")
.internal()
- .doc("When true, outer CTE definitions takes precedence over inner
definitions.")
+ .doc("When true, outer CTE definitions takes precedence over inner
definitions. If set to " +
+ "false, inner CTE definitions take precedence. The default value is
empty, which keep the " +
Review comment:
Yes, use `keep` here is ambiguous, thanks for pointing out! I want to
express `always`.
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