cloud-fan commented on code in PR #49245:
URL: https://github.com/apache/spark/pull/49245#discussion_r1908167968
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/pipeOperators.scala:
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@@ -57,6 +66,21 @@ case class PipeExpression(child: Expression, isAggregate:
Boolean, clause: Strin
}
}
+/**
+ * Validates and strips PipeExpression nodes from a logical plan once the
child expressions are
+ * resolved.
+ */
+object ValidateAndStripPipeExpressions extends Rule[LogicalPlan] {
+ def apply(plan: LogicalPlan): LogicalPlan =
plan.resolveOperatorsUpWithPruning(
+ _.containsPattern(PIPE_EXPRESSION), ruleId) {
+ case node: LogicalPlan =>
+ node.resolveExpressions {
+ case p: PipeExpression if p.child.resolved =>
+ p.checkInvariantsAndRemove
Review Comment:
shall we remove this lazy val and inline the validation code here?
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