clean

Author: gatorsmile

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/basicLogicalOperators.scala

@@ -924,23 +924,3 @@ case class Deduplicate(
 
   override def output: Seq[Attribute] = child.output
 }
-
-/**
- * A logical plan for setting a barrier of analysis.
- *
- * The SQL Analyzer goes through a whole query plan even most part of it is analyzed. This
- * increases the time spent on query analysis for long pipelines in ML, especially.
- *
- * This logical plan wraps an analyzed logical plan to prevent it from analysis again. The barrier
- * is applied to the analyzed logical plan in Dataset. It won't change the output of wrapped
- * logical plan and just acts as a wrapper to hide it from analyzer. New operations on the dataset
- * will be put on the barrier, so only the new nodes created will be analyzed.
- *
- * This analysis barrier will be removed at the end of analysis stage.
- */
-case class AnalysisBarrier(child: LogicalPlan) extends LeafNode {
-  override protected def innerChildren: Seq[LogicalPlan] = Seq(child)
-  override def output: Seq[Attribute] = child.output
-  override def isStreaming: Boolean = child.isStreaming
-  override def doCanonicalize(): LogicalPlan = child.canonicalized
-}