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https://issues.apache.org/jira/browse/CALCITE-4692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17379732#comment-17379732
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duan xiong commented on CALCITE-4692:
-------------------------------------
Redshift does not support the DOUBLE datatype maybe better.
> [Redshift Dialect] Calcite typecasts the output of aggregate functions on
> integer columns to DOUBLE
> ---------------------------------------------------------------------------------------------------
>
> Key: CALCITE-4692
> URL: https://issues.apache.org/jira/browse/CALCITE-4692
> Project: Calcite
> Issue Type: Bug
> Reporter: Narayanan Venkateswaran
> Assignee: Narayanan Venkateswaran
> Priority: Major
> Labels: pull-request-available
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Redshift does not support the DOUBLE datatype and results in an error. The
> fix requires internally transforming the aggregate function output to float8
> instead of double.
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