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