cloud-fan commented on a change in pull request #35233:
URL: https://github.com/apache/spark/pull/35233#discussion_r810859617
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/LogicalPlan.scala
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@@ -185,7 +185,7 @@ trait UnaryNode extends LogicalPlan with
UnaryLike[LogicalPlan] {
allConstraints += EqualNullSafe(a.toAttribute, l)
case a @ Alias(e, _) =>
// For every alias in `projectList`, replace the reference in
constraints by its attribute.
- allConstraints ++= allConstraints.map(_ transform {
+ allConstraints ++= allConstraints.filter(_.deterministic).map(_
transform {
Review comment:
do you know how the `allConstraints` include nondeterministic
expressions at the first place? It starts with `child.constraints`, and looking
at the implementation, it should only produce deterministic expressions
https://github.com/apache/spark/blob/master/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/QueryPlanConstraints.scala#L38
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