Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/17400#discussion_r116871517
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/basicPhysicalOperators.scala
---
@@ -36,6 +36,12 @@ import
org.apache.spark.util.random.{BernoulliCellSampler, PoissonSampler}
case class ProjectExec(projectList: Seq[NamedExpression], child: SparkPlan)
extends UnaryExecNode with CodegenSupport {
+ @transient private lazy val aliasesInProjects =
projectList.flatMap(_.collectFirst {
--- End diff --
Could we fix the issue in `EnsureRequirements`? Aggregate operators can
also introduce alias.
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