[jira] [Commented] (SPARK-11661) We should still pushdown filters returned by a data source's unhandledFilters

["Apache Spark (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-11661?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15000882#comment-15000882 ] 

Apache Spark commented on SPARK-11661:
--------------------------------------

User 'yhuai' has created a pull request for this issue:
https://github.com/apache/spark/pull/9634

> We should still pushdown filters returned by a data source's unhandledFilters
> -----------------------------------------------------------------------------
>
>                 Key: SPARK-11661
>                 URL: https://issues.apache.org/jira/browse/SPARK-11661
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>            Reporter: Yin Huai
>            Priority: Blocker
>
> We added unhandledFilters interface to SPARK-10978. So, a data source has a chance to let Spark SQL know that for those returned filters, it is possible that the data source will not apply them to every row. So, Spark SQL should use a Filter operator to evaluate those filters. However, if a filter is a part of returned unhandledFilters, we should still push it down. For example, our internal data sources do not override this method, if we do not push down those filters, we are actually turning off the filter pushdown feature.



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