cloud-fan commented on a change in pull request #27073:
[SPARK-29768][SQL][FOLLOW-UP]Improve handling non-deterministic filter of
ScanOperation
URL: https://github.com/apache/spark/pull/27073#discussion_r362507256
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/planning/patterns.scala
##########
@@ -142,12 +140,14 @@ object ScanOperation extends OperationHelper with
PredicateHelper {
case Filter(condition, child) =>
collectProjectsAndFilters(child) match {
case Some((fields, filters, other, aliases)) =>
- // Follow CombineFilters and only keep going if the collected
Filters
- // are all deterministic and this filter doesn't have common
non-deterministic
- // expressions with lower Project.
- if (filters.forall(_.deterministic) &&
- !hasCommonNonDeterministic(Seq(condition), aliases)) {
- val substitutedCondition = substitute(aliases)(condition)
+ // Follow CombineFilters and only keep going if 1) the collected
Filters
+ // and this filter are all deterministic or 2) if this filter is
the first
+ // collected filter which is non-deterministic and doesn't have
common
Review comment:
can we update the comment?
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