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https://issues.apache.org/jira/browse/CALCITE-7562?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18083981#comment-18083981
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Mihai Budiu commented on CALCITE-7562:
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I never really understood what it means to "disable type coercion".
You are actually performing type coercion here. What is the result supposed to
be if coercion is disabled?
> SqlToRel misses CAST in case IN expression without type coercion
> ----------------------------------------------------------------
>
> Key: CALCITE-7562
> URL: https://issues.apache.org/jira/browse/CALCITE-7562
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Sergey Nuyanzin
> Assignee: Sergey Nuyanzin
> Priority: Major
> Labels: pull-request-available
>
> In CALCITE-6435 there was removed {{ensureType}} while handling {{IN}}
> expressions.
> The problem appears when there are types which might be coerced with default
> settings however type coercion is disabled.
> For instance
> {code:sql}
> date_1 in ('2000-01-01', '2002-02-02')
> {code}
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