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Posted to issues@hawq.apache.org by "Oleksandr Diachenko (JIRA)" <ji...@apache.org> on 2017/04/14 00:03:42 UTC

[jira] [Resolved] (HAWQ-1431) Do not use StatsAccessor when column specified in SELECT clause

     [ https://issues.apache.org/jira/browse/HAWQ-1431?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Oleksandr Diachenko resolved HAWQ-1431.
---------------------------------------
       Resolution: Fixed
    Fix Version/s: 2.3.0.0-incubating

> Do not use StatsAccessor when column specified in SELECT clause
> ---------------------------------------------------------------
>
>                 Key: HAWQ-1431
>                 URL: https://issues.apache.org/jira/browse/HAWQ-1431
>             Project: Apache HAWQ
>          Issue Type: Sub-task
>          Components: PXF
>            Reporter: Oleksandr Diachenko
>            Assignee: Oleksandr Diachenko
>             Fix For: 2.3.0.0-incubating
>
>
> StatsAccessor should be used only for queries like COUNT(*) and not COUNT(column) because we use file-level statistics, which has a total number of rows, not just number of not-null values.



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