maropu commented on a change in pull request #30018:
URL: https://github.com/apache/spark/pull/30018#discussion_r546371103
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
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@@ -3858,3 +3808,55 @@ object UpdateOuterReferences extends Rule[LogicalPlan] {
}
}
}
+
+/**
+ * Pulls out nondeterministic expressions from LogicalPlan which is not
Project or Filter,
+ * put them into an inner Project and finally project them away at the outer
Project.
+ */
+object PullOutNondeterministic extends Rule[LogicalPlan] {
Review comment:
Could you make a dedicated file for this rule?
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