You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues-all@impala.apache.org by "Tim Armstrong (Jira)" <ji...@apache.org> on 2019/09/16 22:49:00 UTC

[jira] [Resolved] (IMPALA-967) Investigate wide table performance

     [ https://issues.apache.org/jira/browse/IMPALA-967?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Armstrong resolved IMPALA-967.
----------------------------------
    Resolution: Won't Fix

This is kinda open ended. We fixed a bunch of perf issues in this area so I'll close for now.

> Investigate wide table performance
> ----------------------------------
>
>                 Key: IMPALA-967
>                 URL: https://issues.apache.org/jira/browse/IMPALA-967
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Perf Investigation
>    Affects Versions: Impala 1.3
>            Reporter: Skye Wanderman-Milne
>            Priority: Minor
>              Labels: codegen
>
> Querying wide tables (very roughly 1000+ columns) is very slow. It looks like the time is spent in planning and/or codegen, and that the time increases worse than linearly with the number of columns.



--
This message was sent by Atlassian Jira
(v8.3.2#803003)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-all-unsubscribe@impala.apache.org
For additional commands, e-mail: issues-all-help@impala.apache.org