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Posted to issues-all@impala.apache.org by "Fucun Chu (Jira)" <ji...@apache.org> on 2021/03/02 12:19:00 UTC
[jira] [Resolved] (IMPALA-10467) Implement ds_theta_union()
function
[ https://issues.apache.org/jira/browse/IMPALA-10467?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Fucun Chu resolved IMPALA-10467.
--------------------------------
Fix Version/s: Impala 4.0
Resolution: Fixed
> Implement ds_theta_union() function
> -----------------------------------
>
> Key: IMPALA-10467
> URL: https://issues.apache.org/jira/browse/IMPALA-10467
> Project: IMPALA
> Issue Type: New Feature
> Reporter: Fucun Chu
> Assignee: Fucun Chu
> Priority: Major
> Fix For: Impala 4.0
>
>
> Similarly to https://issues.apache.org/jira/browse/IMPALA-9633 DataSketches Theta also has union functionality.
> ds_theta_union() expects a dataset of STRINGs (e.g. column of a table) that represents serialized Theta sketches and returns a single STRING that is the received sketches unioned and serialized.
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