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https://issues.apache.org/jira/browse/CALCITE-6091?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17782824#comment-17782824
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Jiajun Xie commented on CALCITE-6091:
-------------------------------------
In fact, the issue has been resolved by
https://issues.apache.org/jira/browse/CALCITE-4603.
But it doesn't handle null situations.
> Char that in array or map is truncated in CASE WHEN statement
> -------------------------------------------------------------
>
> Key: CALCITE-6091
> URL: https://issues.apache.org/jira/browse/CALCITE-6091
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Jiajun Xie
> Assignee: Jiajun Xie
> Priority: Major
> Labels: pull-request-available
>
> {code:java}
> select case when true then array('abc')
> when false then array('d') end as c {code}
> The sql result type is {*}CHAR(1) ARRAY{*}.
> If we use the {*}CHAR(1) ARRAY{*}, *array('abc')* will be truncated.
> > Map has same issue.
>
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