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Posted to issues@calcite.apache.org by "keaton drebes (Jira)" <ji...@apache.org> on 2021/08/18 12:57:00 UTC

[jira] [Closed] (CALCITE-4745) RelDataTypeSystemImpl.deriveAvgAggType typing error

     [ https://issues.apache.org/jira/browse/CALCITE-4745?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

keaton drebes closed CALCITE-4745.
----------------------------------
    Resolution: Not A Bug

> RelDataTypeSystemImpl.deriveAvgAggType typing error
> ---------------------------------------------------
>
>                 Key: CALCITE-4745
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4745
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.27.0
>            Reporter: keaton drebes
>            Priority: Minor
>             Fix For: 1.27.0
>
>
> Currently, RelDataTypeSystemImpl.deriveAvgAggType returns the type of the input argument to the aggregation.
> This is obviously incorrect, AVG(A) where A has values [0, 1] should return .5, which is not an integer. This issue effects all SqlAggFunction's, since they ultimately use deriveAvgAggType for type inference. 
> PR here: [https://github.com/apache/calcite/pull/2498]



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