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Posted to issues@spark.apache.org by "Yash Datta (JIRA)" <ji...@apache.org> on 2014/10/16 13:36:33 UTC

[jira] [Updated] (SPARK-3968) Using parquet-mr filter2 api in spark sql, add a custom filter for InSet clause

     [ https://issues.apache.org/jira/browse/SPARK-3968?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yash Datta updated SPARK-3968:
------------------------------
    Shepherd: Yash Datta

> Using parquet-mr filter2 api in spark sql, add a custom filter for InSet clause
> -------------------------------------------------------------------------------
>
>                 Key: SPARK-3968
>                 URL: https://issues.apache.org/jira/browse/SPARK-3968
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 1.1.0
>            Reporter: Yash Datta
>            Priority: Minor
>             Fix For: 1.1.1
>
>
> The parquet-mr project has introduced a new filter api , along with several fixes , like filtering on OPTIONAL columns as well. It can also eliminate entire RowGroups depending on certain statistics like min/max
> We can leverage that to further improve performance of queries with filters.
> Also filter2 api introduces ability to create custom filters. We can create a custom filter for the optimized In clause (InSet) , so that elimination happens in the ParquetRecordReader itself.



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