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Posted to issues@impala.apache.org by "Fucun Chu (Jira)" <ji...@apache.org> on 2021/06/26 10:27:00 UTC

[jira] [Resolved] (IMPALA-10687) Implement ds_cpc_union() function

     [ https://issues.apache.org/jira/browse/IMPALA-10687?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fucun Chu resolved IMPALA-10687.
--------------------------------
    Fix Version/s: Impala 4.1
       Resolution: Fixed

> Implement ds_cpc_union() function
> ---------------------------------
>
>                 Key: IMPALA-10687
>                 URL: https://issues.apache.org/jira/browse/IMPALA-10687
>             Project: IMPALA
>          Issue Type: New Feature
>            Reporter: Fucun Chu
>            Assignee: Fucun Chu
>            Priority: Major
>             Fix For: Impala 4.1
>
>
> Similarly to https://issues.apache.org/jira/browse/IMPALA-9633 DataSketches CPC also has union functionality.
> ds_cpc_union() expects a dataset of STRINGs (e.g. column of a table) that represents serialized CPC sketches and returns a single STRING that is the received sketches unioned and serialized.



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