mihailoale-db commented on code in PR #53474:
URL: https://github.com/apache/spark/pull/53474#discussion_r2619721878
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/resolver/AutoGeneratedAliasProvider.scala:
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@@ -31,12 +31,22 @@ class AutoGeneratedAliasProvider(expressionIdAssigner:
ExpressionIdAssigner) {
* Create a new auto-generated [[Alias]]. If the `name` is not provided,
[[toPrettySql]] is going
* to be used to generate a proper alias name. We call
[[ExpressionIdAssigner.mapExpression]] to
* register this alias in the [[ExpressionIdAssigner]].
+ *
+ * If `plainAlias` is true, we create an [[Alias]] without mapping
expression ID. This is needed
+ * for the [[Alias]]es created in fixed-point.
*/
def newAlias(
child: Expression,
name: Option[String] = None,
- explicitMetadata: Option[Metadata] = None): Alias = {
- newAliasImpl(child = child, name = name, explicitMetadata =
explicitMetadata)
+ explicitMetadata: Option[Metadata] = None,
+ plainAlias: Boolean = false): Alias = {
+ if (plainAlias) {
+ Alias(child = child, name = name.getOrElse(toPrettySQL(child)))(
Review Comment:
makes sense, changed it.
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