AngersZhuuuu commented on a change in pull request #28490:
URL: https://github.com/apache/spark/pull/28490#discussion_r480120727
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
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@@ -570,18 +570,44 @@ class Analyzer(
s"Grouping sets size cannot be greater than
${GroupingID.dataType.defaultSize * 8}")
}
+ // For struct field, it will be resolve as Alias(GetStructField, name),
+ // In Aggregate/GroupingSets this behavior will cause the same struct
fields
Review comment:
cc @cloud-fan
Updated. since it's special, we can't just use CleanupAlias.trimAlias()
Add a new method to fit for GetStructField
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