[jira] [Updated] (PARQUET-654) Make record-level filtering optional

["Gabor Szadovszky (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PARQUET-654?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gabor Szadovszky updated PARQUET-654:
-------------------------------------
    Fix Version/s: 1.8.2

> Make record-level filtering optional
> ------------------------------------
>
>                 Key: PARQUET-654
>                 URL: https://issues.apache.org/jira/browse/PARQUET-654
>             Project: Parquet
>          Issue Type: Improvement
>          Components: parquet-mr
>            Reporter: Cheng Lian
>            Assignee: Ryan Blue
>            Priority: Major
>             Fix For: 1.9.0, 1.8.2
>
>
> For some engines, especially those with vectorized Parquet readers, filter predicate can often be evaluated more efficiently by the engine. In these cases, Parquet record-level filtering may even slow down query execution when filter push-down is enabled. On the other hand, when the data is well prepared, filter push-down can be very valuable due to row group level filtering.
> One possible improvement here is to add a configuration option that makes record-level filtering optional. In this way, the upper-level engine may leverage both Parquet row group level filtering and faster native record-level filtering.



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