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Posted to issues@flink.apache.org by "Jiabao Sun (Jira)" <ji...@apache.org> on 2023/08/09 03:59:00 UTC

[jira] [Commented] (FLINK-21949) Support collect to array aggregate function

    [ https://issues.apache.org/jira/browse/FLINK-21949?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17752244#comment-17752244 ] 

Jiabao Sun commented on FLINK-21949:
------------------------------------

Hi [~martijnvisser], can you help assign this ticket to me?

> Support collect to array aggregate function
> -------------------------------------------
>
>                 Key: FLINK-21949
>                 URL: https://issues.apache.org/jira/browse/FLINK-21949
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table SQL / API
>    Affects Versions: 1.12.0
>            Reporter: Jiabao Sun
>            Priority: Minor
>
> Some nosql databases like mongodb and elasticsearch support nested data types.
> Aggregating multiple rows into ARRAY<ROW> is a common requirement.
> The CollectToArray function is similar to Collect, except that it returns ARRAY<ROW> instead of MULTISET<ROW>.



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