Github user marmbrus commented on a diff in the pull request: https://github.com/apache/spark/pull/10844#discussion_r51068499 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/basicOperators.scala --- @@ -88,6 +88,12 @@ case class Generate( case class Filter(condition: Expression, child: LogicalPlan) extends UnaryNode { override def output: Seq[Attribute] = child.output + + override def constraints: Set[Expression] = { + val newConstraint = splitConjunctivePredicates(condition).filter( + _.references.subsetOf(outputSet)).toSet --- End diff -- style nit: we typically avoid breaking in the middle of a function call and instead prefer to break in between calls (always pick the highest syntactic level) ```scala val newConstraint = splitConjunctivePredicates(condition) .filter(_.references.subsetOf(outputSet)) .toSet ```
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