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From "Vladimir Ozerov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-4388) .NET: Improve LINQ error message when aggregates are used with multiple fields
Date Fri, 09 Dec 2016 12:48:01 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-4388?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vladimir Ozerov updated IGNITE-4388:
------------------------------------
    Fix Version/s:     (was: 1.9)
                   2.0

> .NET: Improve LINQ error message when aggregates are used with multiple fields
> ------------------------------------------------------------------------------
>
>                 Key: IGNITE-4388
>                 URL: https://issues.apache.org/jira/browse/IGNITE-4388
>             Project: Ignite
>          Issue Type: Improvement
>          Components: platforms
>    Affects Versions: 1.7, 1.8
>            Reporter: Pavel Tupitsyn
>            Priority: Trivial
>              Labels: .NET, LINQ
>             Fix For: 2.0
>
>
> Current message is "Aggregate functions do not support multiple fields". This happens
when you try to apply aggregate function (such as COUNT) to a query which selects multiple
fields (select new {X, Y}). LINQ allows that, but we can't express this in SQL.
> * See what Entity Framework does
> * Improve error message



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