Github user viirya commented on the issue:
https://github.com/apache/spark/pull/19727
Simply reusing `ProjectExec` doesn't really reduce the scan. The
duplication execution of CTE is a well known issue. I've addressed it before.
But seems no solution to deal all possible cases yet.--- --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
