Github user jiangxb1987 commented on a diff in the pull request: https://github.com/apache/spark/pull/14619#discussion_r74896284 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala --- @@ -1636,6 +1638,30 @@ object ReplaceExceptWithAntiJoin extends Rule[LogicalPlan] { } /** + * Insert a [[Scanner]] operator over [[MultiInstanceRelation]], then combine [[Project]]s and + * [[Filter]]s with this operator, then the planner can match on the [[Scanner]] node directly. + */ +object InsertRelationScanner extends Rule[LogicalPlan] with PredicateHelper { --- End diff -- Roger that, will change it and retest.
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