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https://issues.apache.org/jira/browse/CALCITE-3230?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16900702#comment-16900702
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Pressenna commented on CALCITE-3230:
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I am guessing it is caused by CALCITE-2590
> Explicit CASTs by user are not applied.
> ---------------------------------------
>
> Key: CALCITE-3230
> URL: https://issues.apache.org/jira/browse/CALCITE-3230
> Project: Calcite
> Issue Type: Bug
> Components: core
> Environment: For some reason casting is not working correctly with
> aggregate functions.
> for example:
> {code:java}
> SELECT CAST(AVG(double_column) AS float) FROM foo GROUP BY group_coulmn;
> {code}
> does not apply the cast. We currently have to circumvent this by using
> following dummy construct.
> {code:java}
> SELECT CAST( (AVG(double_column) + 0.0) AS float) FROM foo GROUP BY
> group_coulmn;
> {code}
>
> Reporter: Pressenna
> Priority: Major
>
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