IssueJira0786: add postgre as target storage

Author: alex-kulakov

Orm/Xtensive.Orm.Tests/Issues/IssueJira0786_SqlServerAggregatesProblem/AggregatesProblemTestBase.cs

@@ -46,7 +46,7 @@ protected override DomainConfiguration BuildConfiguration()
 
     protected override void CheckRequirements()
     {
-      Require.ProviderIs(StorageProvider.SqlServer);
+      Require.ProviderIs(StorageProvider.SqlServer | StorageProvider.PostgreSql);
     }
 
     protected override void PopulateData()

Orm/Xtensive.Orm.Tests/Issues/IssueJira0786_SqlServerAggregatesProblem/AverageProcessingTest.cs

@@ -6,12 +6,7 @@
 
 using NUnit.Framework;
 using System;
-using System.Collections.Generic;
 using System.Linq;
-using System.Linq.Expressions;
-using System.Reflection;
-using System.Text;
-using Xtensive.Orm.Configuration;
 
 namespace Xtensive.Orm.Tests.Issues.IssueJira0786_SqlServerAggregatesProblem
 {

Orm/Xtensive.Orm.Tests/Issues/IssueJira0786_SqlServerAggregatesProblem/MaxProcessingTest.cs

@@ -6,12 +6,7 @@
 
 using NUnit.Framework;
 using System;
-using System.Collections.Generic;
 using System.Linq;
-using System.Linq.Expressions;
-using System.Reflection;
-using System.Text;
-using Xtensive.Orm.Configuration;
 
 namespace Xtensive.Orm.Tests.Issues.IssueJira0786_SqlServerAggregatesProblem
 {

Orm/Xtensive.Orm.Tests/Issues/IssueJira0786_SqlServerAggregatesProblem/MinProcessingTest.cs

@@ -6,12 +6,7 @@
 
 using NUnit.Framework;
 using System;
-using System.Collections.Generic;
 using System.Linq;
-using System.Linq.Expressions;
-using System.Reflection;
-using System.Text;
-using Xtensive.Orm.Configuration;
 
 namespace Xtensive.Orm.Tests.Issues.IssueJira0786_SqlServerAggregatesProblem
 {

Orm/Xtensive.Orm.Tests/Issues/IssueJira0786_SqlServerAggregatesProblem/SumProcessingTest.cs

@@ -6,12 +6,7 @@
 
 using NUnit.Framework;
 using System;
-using System.Collections.Generic;
 using System.Linq;
-using System.Linq.Expressions;
-using System.Reflection;
-using System.Text;
-using Xtensive.Orm.Configuration;
 
 namespace Xtensive.Orm.Tests.Issues.IssueJira0786_SqlServerAggregatesProblem
 {