Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/7590#discussion_r35609542
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/basicOperators.scala ---
@@ -43,7 +42,10 @@ case class Project(projectList: Seq[NamedExpression],
child: SparkPlan) extends
protected override def doExecute(): RDD[InternalRow] =
child.execute().mapPartitions { iter =>
val reusableProjection = buildProjection()
- iter.map(reusableProjection)
+ iter.map { row =>
+ accumulators("numTuples").asInstanceOf[Accumulator[Long]] += 1
--- End diff --
This is called for every row. Could you save
`accumulators("numTuples").asInstanceOf[Accumulator[Long]]` as a variable and
reuse it?
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
