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Posted to issues-all@impala.apache.org by "Zoltán Borók-Nagy (Jira)" <ji...@apache.org> on 2025/05/08 17:30:00 UTC

[jira] [Assigned] (IMPALA-14014) TABLESAMPLE of COMPUTE STATS has no effect on Iceberg tables

     [ https://issues.apache.org/jira/browse/IMPALA-14014?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zoltán Borók-Nagy reassigned IMPALA-14014:
------------------------------------------

    Assignee: Zoltán Borók-Nagy

> TABLESAMPLE of COMPUTE STATS has no effect on Iceberg tables
> ------------------------------------------------------------
>
>                 Key: IMPALA-14014
>                 URL: https://issues.apache.org/jira/browse/IMPALA-14014
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Frontend
>            Reporter: Zoltán Borók-Nagy
>            Assignee: Zoltán Borók-Nagy
>            Priority: Critical
>              Labels: impala-iceberg
>
> TABLESAMPLE of COMPUTE STATS has no effect on Iceberg tables.
> E.g. COMPUTE STATS t TABLESAMPLE SYSTEM system(10); scans the whole table to calculate statistics, whereas it should only use ~10% of the data.



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