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[SPARK-2059][SQL] Don't throw TreeNodeException in execution.ExplainCommand #1294

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[SPARK-2059][SQL] Don't throw TreeNodeException in execution.ExplainCommand #1294

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9 changes: 6 additions & 3 deletions sql/core/src/main/scala/org/apache/spark/sql/execution/commands.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -19,9 +19,10 @@ package org.apache.spark.sql.execution

import org.apache.spark.annotation.DeveloperApi
import org.apache.spark.rdd.RDD
import org.apache.spark.sql.{SQLContext, Row}
import org.apache.spark.sql.catalyst.expressions.{GenericRow, Attribute}
import org.apache.spark.sql.catalyst.errors.TreeNodeException
import org.apache.spark.sql.catalyst.expressions.{Attribute, GenericRow}
import org.apache.spark.sql.catalyst.plans.logical.LogicalPlan
import org.apache.spark.sql.{Row, SQLContext}

trait Command {
/**
Expand Down Expand Up @@ -86,8 +87,10 @@ case class ExplainCommand(
extends LeafNode with Command {

// Run through the optimizer to generate the physical plan.
override protected[sql] lazy val sideEffectResult: Seq[String] = {
override protected[sql] lazy val sideEffectResult: Seq[String] = try {
"Physical execution plan:" +: context.executePlan(logicalPlan).executedPlan.toString.split("\n")
} catch { case cause: TreeNodeException[_] =>
"Error occurred during query planning: " +: cause.getMessage.split("\n")
}

def execute(): RDD[Row] = {
Expand Down