You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@impala.apache.org by "Zoltán Borók-Nagy (Jira)" <ji...@apache.org> on 2022/09/27 07:17:00 UTC

[jira] [Resolved] (IMPALA-11582) Implement table sampling for Iceberg tables

     [ https://issues.apache.org/jira/browse/IMPALA-11582?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zoltán Borók-Nagy resolved IMPALA-11582.
----------------------------------------
    Fix Version/s: Impala 4.2.0
       Resolution: Fixed

> Implement table sampling for Iceberg tables
> -------------------------------------------
>
>                 Key: IMPALA-11582
>                 URL: https://issues.apache.org/jira/browse/IMPALA-11582
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Frontend
>            Reporter: Zoltán Borók-Nagy
>            Assignee: Zoltán Borók-Nagy
>            Priority: Major
>              Labels: impala-iceberg
>             Fix For: Impala 4.2.0
>
>
> Currently Iceberg tables cannot be sampled.
> We should allow table sampling for Iceberg tables in SELECT and COMPUTE STATS statements.
> Predicates in the WHERE clause should affect the results of table sampling similarly to how legacy tables work (sampling is applied after static partition pruning).
> Make the operation repeatable via the REPEATABLE clause.
> See details at https://impala.apache.org/docs/build/html/topics/impala_tablesample.html



--
This message was sent by Atlassian Jira
(v8.20.10#820010)