andrej-db commented on code in PR #45293:
URL: https://github.com/apache/spark/pull/45293#discussion_r1506024777
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/executeImmediate.scala:
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@@ -122,11 +122,14 @@ class SubstituteExecuteImmediate(val catalogManager:
CatalogManager)
resolveArguments(expressions))
} else {
val aliases = expressions.collect {
- case (e: Alias) => e
+ case e: Alias => e
+ case u: UnresolvedAttribute => Alias(u, u.name)()
Review Comment:
So, the engine converts the child of an Alias (UnresolvedAttribute) to
VariableReference, which leads to the change of the name (`parm` ->
`variablereference(system.session.parm='Hello')`). The name of the Alias
remains, so when converted to an Alias it is rendered correctly.
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