[GitHub] [spark] ulysses-you commented on pull request #40364: [SPARK-42745][SQL] Improved AliasAwareOutputExpression works with DSv2

["ulysses-you (via GitHub)" <gi...@apache.org>]

ulysses-you commented on PR #40364:
URL: https://github.com/apache/spark/pull/40364#issuecomment-1463591644

   it seems to me that:
   1. we should skip add `PlanExpression` into `aliasMap`
   2. make `aliasMap` as immutable, and use a local mutable map, then merge them after done multiTransform


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