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https://issues.apache.org/jira/browse/FLINK-31118?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dawid Wysakowicz reassigned FLINK-31118:
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Assignee: jackylau
> Add ARRAY_UNION supported in SQL & Table API
> --------------------------------------------
>
> Key: FLINK-31118
> URL: https://issues.apache.org/jira/browse/FLINK-31118
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / Planner
> Affects Versions: 1.18.0
> Reporter: jackylau
> Assignee: jackylau
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.18.0
>
>
> Remove all elements that equal to element from array.
> Syntax:
> array_union(array)
> Arguments:
> array: An ARRAY to be handled.
> Returns:
> An ARRAY. If value is NULL, the result is NULL.
> Examples:
> {code:sql}
> > SELECT array_union(array(1, 2, 3), array(1, 3, 5));
> [1,2,3,5] {code}
> See also
> spark [https://spark.apache.org/docs/latest/api/sql/index.html#array_union]
> presto [https://prestodb.io/docs/current/functions/array.html]
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