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https://issues.apache.org/jira/browse/FLINK-31663?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17825244#comment-17825244
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Jacky Lau commented on FLINK-31663:
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[~Sergey Nuyanzin] in Flink, array_contains returns true if the array contains
null values. However, if the element is null, array_position returns null,
which is also a different inconsistent behavior.
because the two functions handle null values inconsistently. and can also be
confusing for users. should we change the behavior ?
> Add ARRAY_EXCEPT supported in SQL & Table API
> ---------------------------------------------
>
> Key: FLINK-31663
> URL: https://issues.apache.org/jira/browse/FLINK-31663
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / API
> Reporter: luoyuxia
> Assignee: Hanyu Zheng
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.20.0
>
>
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