ulysses-you commented on code in PR #41088:
URL: https://github.com/apache/spark/pull/41088#discussion_r1281706092
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sql/core/src/main/scala/org/apache/spark/sql/execution/DataSourceScanExec.scala:
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@@ -383,6 +383,24 @@ trait FileSourceScanLike extends DataSourceScanExec {
}).flatMap(DataSourceStrategy.translateFilter(_,
supportNestedPredicatePushdown))
}
+ @transient
+ protected lazy val pushedDownFilters: Seq[Filter] =
translatePushedDownFilters(dataFilters)
+
+ @transient
+ protected lazy val dynamicallyPushedDownFilters: Seq[Filter] = {
+ if
(dataFilters.exists(_.exists(_.isInstanceOf[execution.ScalarSubquery]))) {
+ // Replace scalar subquery to literal so that
`DataSourceStrategy.translateFilter` can
+ // support translate it. The subquery must has been materialized since
SparkPlan always
+ // execute subquery first.
+ val normalized = dataFilters.map(_.transform {
Review Comment:
Seems `selectedPartitions` does not accept subquery expression, it filter
out the dpp filter first.
https://github.com/apache/spark/blob/e326b9b6565b1e2b697d41714060e2ff9e424514/sql/core/src/main/scala/org/apache/spark/sql/execution/DataSourceScanExec.scala#L252-L257
Then in `dynamicallySelectedPartitions`, normalized the partition filter.
https://github.com/apache/spark/blob/e326b9b6565b1e2b697d41714060e2ff9e424514/sql/core/src/main/scala/org/apache/spark/sql/execution/DataSourceScanExec.scala#L268-L281
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