hvanhovell commented on issue #23392: [SPARK-26450][SQL] Avoid rebuilding map of schema for every column in projection URL: https://github.com/apache/spark/pull/23392#issuecomment-451106201 @bersprockets did you audit the entire codebase for this pattern? From a cursory search I could also see that `ProjectExec` does something similar, and that is not covered by this PR.
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