beliefer commented on a change in pull request #35823:
URL: https://github.com/apache/spark/pull/35823#discussion_r827552580
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/AliasHelper.scala
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@@ -77,6 +85,17 @@ trait AliasHelper {
}).asInstanceOf[NamedExpression]
}
+ /**
+ * Replace all alias, with the aliased attribute.
+ */
+ protected def replaceAliasWithAttr(
+ expr: NamedExpression,
+ aliasMap: AttributeMap[Alias]): NamedExpression = {
+ replaceAliasButKeepName(expr, aliasMap).transform {
+ case Alias(attr: Attribute, _) => attr
Review comment:
Attribute in groupingExpressions may be alias. Before push down SQL to
JDBC, I want replace the alias Attribute with origin Attribute, not the Alias.
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