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Posted to issues-all@impala.apache.org by "Zoltán Borók-Nagy (Jira)" <ji...@apache.org> on 2022/05/18 16:19:00 UTC

[jira] [Assigned] (IMPALA-11279) Optimize count(*) queries for Iceberg tables

     [ https://issues.apache.org/jira/browse/IMPALA-11279?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zoltán Borók-Nagy reassigned IMPALA-11279:
------------------------------------------

    Assignee: LiPenglin

> Optimize count(*) queries for Iceberg tables
> --------------------------------------------
>
>                 Key: IMPALA-11279
>                 URL: https://issues.apache.org/jira/browse/IMPALA-11279
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Frontend
>            Reporter: Zoltán Borók-Nagy
>            Assignee: LiPenglin
>            Priority: Major
>              Labels: impala-iceberg
>
> Plain SELECT count(*) FROM tbl; queries could be made superfast for Iceberg tables as they store the precise number of rows in table property 'numRows'.
> So we could just answer such queries from table metadata.



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