[jira] [Updated] (SPARK-27974) Add built-in Aggregate Function: array_agg

["Takeshi Yamamuro (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-27974?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Takeshi Yamamuro updated SPARK-27974:
-------------------------------------
    Parent Issue: SPARK-30375  (was: SPARK-27764)

> Add built-in Aggregate Function: array_agg
> ------------------------------------------
>
>                 Key: SPARK-27974
>                 URL: https://issues.apache.org/jira/browse/SPARK-27974
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 3.0.0
>            Reporter: Yuming Wang
>            Priority: Major
>
> ||Function||Argument Type(s)||Return Type||Partial Mode||Description||
> |{{array_agg(_{{expression}}_)}}|any non-array type|array of the argument type|No|input values, including nulls, concatenated into an array|
> |{{array_agg(_{{expression}}_)}}|any array type|same as argument data type|No|input arrays concatenated into array of one higher dimension (inputs must all have same dimensionality, and cannot be empty or NULL)|
> https://www.postgresql.org/docs/11/functions-aggregate.html
> Other DBs:
> https://docs.teradata.com/reader/kmuOwjp1zEYg98JsB8fu_A/Xffi_w_BZeSoaXg6Fd76Qw



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