Github user marmbrus commented on a diff in the pull request: https://github.com/apache/spark/pull/5208#discussion_r28198853 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/SparkStrategies.scala --- @@ -90,6 +90,13 @@ private[sql] abstract class SparkStrategies extends QueryPlanner[SparkPlan] { left.statistics.sizeInBytes <= sqlContext.conf.autoBroadcastJoinThreshold => makeBroadcastHashJoin(leftKeys, rightKeys, left, right, condition, joins.BuildLeft) + // for now let's support inner join first, then add outer join --- End diff -- Lets explictly comment that we try SortMergeJoin first, but only if the config is set.
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