cloud-fan commented on a change in pull request #29585:
URL: https://github.com/apache/spark/pull/29585#discussion_r484743571
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
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@@ -2575,13 +2580,13 @@ class Analyzer(
case ne: NamedExpression =>
// If a named expression is not in regularExpressions, add it to
// extractedExprBuffer and replace it with an AttributeReference.
+ val attr = ne.toAttribute
Review comment:
is it really safe? it looks risky that we silently drop the `Alias` and
assume the `Alias` expr ID has a match in the input attributes.
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