Github user yhuai commented on a diff in the pull request: https://github.com/apache/spark/pull/9399#discussion_r43590460 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSourceStrategy.scala --- @@ -295,18 +309,20 @@ private[sql] object DataSourceStrategy extends Strategy with Logging { val requestedColumns = projects.asInstanceOf[Seq[Attribute]] // Safe due to if above. .map(relation.attributeMap) // Match original case of attributes. + .filterNot(handledSet.contains) val scan = execution.PhysicalRDD.createFromDataSource( projects.map(_.toAttribute), - scanBuilder(requestedColumns, pushedFilters), + scanBuilder(requestedColumns, candidatePredicates, pushedFilters), --- End diff -- I think I understand what's going on. Actually, `pushedFilters` also contains those filters that cannot be handled by a data source and `candidatePredicates` contains filters that cannot be converted to public Filter interface.
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