yyanyy commented on code in PR #55252:
URL: https://github.com/apache/spark/pull/55252#discussion_r3054406427
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sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/V2ScanRelationPushDown.scala:
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@@ -95,6 +95,13 @@ object V2ScanRelationPushDown extends Rule[LogicalPlan] with
PredicateHelper {
val postScanFilters = postScanFiltersWithoutSubquery ++
normalizedFiltersWithSubquery
+ // Compute the pushed filter expressions: the normalized filters that
were fully pushed
+ // down (i.e., not in postScanFilters). These are stored on the scan
relation for
+ // potential future use in constraint propagation.
Review Comment:
thanks for the info, TIL!
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