[
https://issues.apache.org/jira/browse/FLINK-21582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17294443#comment-17294443
]
Timo Walther commented on FLINK-21582:
--------------------------------------
[~Jerry4free] could you post the full stack trace? It could help to identify
the problem quickly.
> COALESCE not works when cast a variable return null
> ---------------------------------------------------
>
> Key: FLINK-21582
> URL: https://issues.apache.org/jira/browse/FLINK-21582
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / API
> Affects Versions: 1.11.1
> Environment: Flink1.11.1
>
> Reporter: Jerry
> Priority: Minor
>
> select COALESCE(cast('aa' as int), 0);return NULL
> select COALESCE(NULL, 0); return 0
> The first case works failed, but the second case works successful
>
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
