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https://issues.apache.org/jira/browse/FLINK-31102?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17689741#comment-17689741
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Sergey Nuyanzin commented on FLINK-31102:
-----------------------------------------
{quote}
Syntax:
array_remove(array)
{quote}
I guess it should be corrected since it takes 2 args
{quote}
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]
{quote}
looks like a link to another function.
{quote}
An ARRAY. If value is NULL, the result is NULL.
{quote}
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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