ASF GitHub Bot commented on IGNITE-7889:

GitHub user apopovgg opened a pull request:


    IGNITE-7889: .NET: linq GroupBy and Where does not work together


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/gridgain/apache-ignite ignite-7889

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with (at least) the following in the commit message:

    This closes #3608
commit 6156e04a4c8af1bc599cbbfeb30c7726264ab6ea
Author: apopov <tank2.alex@...>
Date:   2018-03-06T14:38:31Z

    IGNITE-7889: .NET: linq GroupBy and Where does not work together


> .NET: linq GroupBy and Where does not work together.
> ----------------------------------------------------
>                 Key: IGNITE-7889
>                 URL: https://issues.apache.org/jira/browse/IGNITE-7889
>             Project: Ignite
>          Issue Type: Bug
>          Components: platforms
>    Affects Versions: 2.1
>            Reporter: Alexey Popov
>            Assignee: Alexey Popov
>            Priority: Major
> The following code completely ignores the Where condition:
> {noformat}
>                 var groupByQuery2 = models.Where(m => m.Value.DateTicks < 10 
> && m.Value.Dirty.HasValue).GroupBy(m => m.Value.ContractId)
>                     .Select(g => new KeyValuePair<string, int>(g.Key, 
> g.Select(m => m.Value.Version).Min()));
> {noformat}
> debugger shows SQL without WHERE:
> {CacheQueryable [CacheName=someCache, TableName=MODEL, Query=SqlFieldsQuery 
> [Sql=select _T0.CONTRACTID, min (_T0.VERSION)  from "someCache".MODEL as _T0 
> group by (_T0.CONTRACTID), Arguments=[], Local=False, PageSize=1024, 
> EnableDistributedJoins=False, EnforceJoinOrder=False, Timeout=00:00:00, 
> ReplicatedOnly=False, Colocated=False, Schema=, Lazy=False]]}

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