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From "Radar Lei (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HAWQ-1660) optimize parquet scan
Date Fri, 21 Sep 2018 07:07:00 GMT

     [ https://issues.apache.org/jira/browse/HAWQ-1660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Radar Lei reassigned HAWQ-1660:
-------------------------------

    Assignee: Kuien Liu  (was: Radar Lei)

> optimize parquet scan
> ---------------------
>
>                 Key: HAWQ-1660
>                 URL: https://issues.apache.org/jira/browse/HAWQ-1660
>             Project: Apache HAWQ
>          Issue Type: Improvement
>          Components: Storage
>    Affects Versions: 2.4.0.0
>            Reporter: Kuien Liu
>            Assignee: Kuien Liu
>            Priority: Minor
>
> I saw Mr. Wen Lin's work on bloomfilter, and push down the fitler into parquet scan.
It provide a chance to accelerate further, that is: read the hash-key-attributes first and
perform filter, if positive, fetch the remaining columns from parquet. does it make sense?



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