mgaido91 opened a new pull request #25145: [SPARK-28375][SQL] Make PullupCorrelatedPredicates idempotent URL: https://github.com/apache/spark/pull/25145 ## What changes were proposed in this pull request? Multiple runs of `PullupCorrelatedPredicates` can produce invalid plans. Indeed, when there is a `Subquery` with a `Filter` a second run removes the conditions pulled by the previous run and overwrites them to nothing. The PR avoids this issue and makes `PullupCorrelatedPredicates` idempotent. ## How was this patch tested? added UT Please review https://spark.apache.org/contributing.html before opening a pull request.
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