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[SPARK-26271][FOLLOW-UP][SQL] remove unuse object SparkPlan

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## What changes were proposed in this pull request?

this code come from PR: https://github.com/apache/spark/pull/11190,
but this code has never been used, only since  PR: https://github.com/apache/spark/pull/14548,
Let's continue fix it. thanks.

## How was this patch tested?

N / A

Closes #23227 from heary-cao/unuseSparkPlan.

Authored-by: caoxuewen <cao.xuewen@zte.com.cn>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
This commit is contained in:
caoxuewen 2018-12-05 23:10:48 +08:00 committed by Wenchen Fan
parent 169d9ad8f1
commit 7bb1dab8a0
1 changed files with 0 additions and 5 deletions
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5
sql/core/src/main/scala/org/apache/spark/sql/execution/SparkPlan.scala
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@ -423,11 +423,6 @@ abstract class SparkPlan extends QueryPlan[SparkPlan] with Logging with Serializ
}
}
object SparkPlan {
private[execution] val subqueryExecutionContext = ExecutionContext.fromExecutorService(
ThreadUtils.newDaemonCachedThreadPool("subquery", 16))
}
trait LeafExecNode extends SparkPlan {
override final def children: Seq[SparkPlan] = Nil
override def producedAttributes: AttributeSet = outputSet