Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/19811#discussion_r157798917 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/joins/SortMergeJoinExec.scala --- @@ -436,14 +435,13 @@ case class SortMergeJoinExec( val rightKeyVars = copyKeys(ctx, rightKeyTmpVars) // A list to hold all matched rows from right side. - val matches = ctx.freshName("matches") val clsName = classOf[ExternalAppendOnlyUnsafeRowArray].getName val spillThreshold = getSpillThreshold val inMemoryThreshold = getInMemoryThreshold - ctx.addMutableState(clsName, matches, - s"$matches = new $clsName($inMemoryThreshold, $spillThreshold);") + val matches = ctx.addMutableState(clsName, "matches", + v => s"$v = new $clsName($inMemoryThreshold, $spillThreshold);") --- End diff -- ditto
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