HyukjinKwon commented on a change in pull request #27775: [SPARK-31022][SQL]
group by alias should fail if there are name conflicts
URL: https://github.com/apache/spark/pull/27775#discussion_r387411629
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
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@@ -2453,6 +2453,15 @@ object SQLConf {
.booleanConf
.createWithDefault(false)
+ val LEGACY_ALLOW_AMBIGUOUS_GROUP_BY_ALIAS =
+ buildConf("spark.sql.legacy.allowAmbiguousGroupByAlias")
+ .doc(s"When ${GROUP_BY_ALIASES.key} is enabled and this conf is true,
Spark will resolve " +
Review comment:
nit: conf -> configuration
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