[jira] [Commented] (FLINK-31102) Add ARRAY_REMOVE supported in SQL & Table API

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

    [ https://issues.apache.org/jira/browse/FLINK-31102?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17689741#comment-17689741 ] 

Sergey Nuyanzin commented on FLINK-31102:
-----------------------------------------

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Syntax:
array_remove(array)

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I guess it should be corrected since it takes 2 args

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spark [[https://spark.apache.org/docs/latest/api/sql/index.html#array_size]|https://spark.apache.org/docs/latest/api/sql/index.html#array_remove]

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looks like a link to another function.

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An ARRAY. If value is NULL, the result is NULL. 

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i guess it should return an array without nulls if first arg is an array and second is a null, correct?

 

> Add ARRAY_REMOVE supported in SQL & Table API
> ---------------------------------------------
>
>                 Key: FLINK-31102
>                 URL: https://issues.apache.org/jira/browse/FLINK-31102
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table SQL / Planner
>    Affects Versions: 1.18.0
>            Reporter: jackylau
>            Priority: Major
>             Fix For: 1.18.0
>
>
> Remove all elements that equal to element from array.
> Syntax:
> array_remove(array)
> Arguments:
> array: An ARRAY to be handled.
> Returns:
> An ARRAY. If value is NULL, the result is NULL. 
> Examples:
> {code:sql}
> SELECT array_remove(array(1, 2, 3, null, 3), 3); 
> -- [1,2,null]
> {code}
> See also
> spark [[https://spark.apache.org/docs/latest/api/sql/index.html#array_size]|https://spark.apache.org/docs/latest/api/sql/index.html#array_remove]
> presto [https://prestodb.io/docs/current/functions/array.html]
> postgresql [https://w3resource.com/PostgreSQL/postgresql_array_remove-function.php] 



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