[jira] [Commented] (SPARK-5465) Data source version of Parquet doesn't push down And filters properly

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

    [ https://issues.apache.org/jira/browse/SPARK-5465?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14295951#comment-14295951 ] 

Apache Spark commented on SPARK-5465:
-------------------------------------

User 'liancheng' has created a pull request for this issue:
https://github.com/apache/spark/pull/4255

> Data source version of Parquet doesn't push down And filters properly
> ---------------------------------------------------------------------
>
>                 Key: SPARK-5465
>                 URL: https://issues.apache.org/jira/browse/SPARK-5465
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 1.2.0, 1.2.1
>            Reporter: Cheng Lian
>            Priority: Blocker
>
> The current implementation combines all predicates and then tries to convert it to a single Parquet filter predicate. In this way, the Parquet filter predicate can not be generated if any component of the original filters can not be converted. (code lines [here|https://github.com/apache/spark/blob/a731314c319a6f265060e05267844069027804fd/sql/core/src/main/scala/org/apache/spark/sql/parquet/newParquet.scala#L197-L201]).
> For example, {{a > 10 AND a < 20}} can be successfully converted, while {{a > 10 AND a < b}} can't because Parquet doesn't accept filters like {{a < b}}.



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