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Posted to dev@parquet.apache.org by "Alex Levenson (JIRA)" <ji...@apache.org> on 2014/07/24 08:32:41 UTC

[jira] [Updated] (PARQUET-40) Take advantage of dictionary pages when performing rowgroup filters in the filter2 API

     [ https://issues.apache.org/jira/browse/PARQUET-40?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alex Levenson updated PARQUET-40:
---------------------------------

    Component/s: parquet-mr

> Take advantage of dictionary pages when performing rowgroup filters in the filter2 API
> --------------------------------------------------------------------------------------
>
>                 Key: PARQUET-40
>                 URL: https://issues.apache.org/jira/browse/PARQUET-40
>             Project: Parquet
>          Issue Type: New Feature
>          Components: parquet-mr
>            Reporter: Alex Levenson
>              Labels: filter2
>
> We currently only filter row groups via the min / max value in the row group.
> We should additionally inspect the dictionary of unique values in a row group (if it has one) -- this could dramatically increase our ability to drop entire rowgroups. 



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