[jira] [Reopened] (FLINK-32257) Add ARRAY_MAX support in SQL & Table API

["Sergey Nuyanzin (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-32257?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sergey Nuyanzin reopened FLINK-32257:
-------------------------------------

> Add ARRAY_MAX support in SQL & Table API
> ----------------------------------------
>
>                 Key: FLINK-32257
>                 URL: https://issues.apache.org/jira/browse/FLINK-32257
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table SQL / Planner
>    Affects Versions: 1.18.0
>            Reporter: Bonnie Varghese
>            Assignee: Hanyu Zheng
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.18.0
>
>
> This is an implementation of ARRAY_MAX
> The array_max() function concatenates get the maximum element from input array.
> The result matches the type of the elements. NULL elements are skipped. If array is empty, or contains only NULL elements, NULL is returned.
>  
> Syntax
> array_max(array)
> Arguments
> array: Any ARRAY with elements for which order is supported.
>  
> Returns
> The result matches the type of the elements. NULL elements are skipped. If array is empty, or contains only NULL elements, NULL is returned.
>  
> Examples
> SQL
>  
> > SELECT array_max(array(1, 20, NULL, 3)); 20
>  
> {code:java}
> // Fink SQL-> select array_max(array[1, 20, null, 3])
> 20{code}
>  
> See also
> spark [https://spark.apache.org/docs/latest/api/sql/index.html#array_max|https://spark.apache.org/docs/latest/api/sql/index.html#array_min]
> presto [https://prestodb.io/docs/current/functions/array.html]



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