Do not use ReliableCommand in the query execution service (#66)

* Do not use ReliableCommand in the query execution service.

* Fixing the logic to remove InfoMessage handlers from ReliableSqlConnection

* Adding test to query UDT

test/Microsoft.SqlTools.ServiceLayer.Test/QueryExecution/ExecuteTests.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+//#define USE_LIVE_CONNECTION
+
 using System;
 using System.Data.Common;
 using System.Linq;
@@ -17,6 +19,7 @@ using Microsoft.SqlTools.ServiceLayer.SqlContext;
 using Microsoft.SqlTools.ServiceLayer.Test.Utility;
 using Microsoft.SqlTools.ServiceLayer.Workspace;
 using Microsoft.SqlTools.ServiceLayer.Workspace.Contracts;
+using Microsoft.SqlTools.Test.Utility;
 using Moq;
 using Xunit;
 
@@ -667,7 +670,35 @@ namespace Microsoft.SqlTools.ServiceLayer.Test.QueryExecution
             Assert.NotEmpty(complete.BatchSummaries[0].Messages);
         }
 
-        #endregion
+#if USE_LIVE_CONNECTION
+        [Fact]
+        public void QueryUdtShouldNotRetry()
+        {
+            // If:
+            // ... I create a query with a udt column in the result set
+            ConnectionInfo connectionInfo = TestObjects.GetTestConnectionInfo();
+            Query query = new Query(Common.UdtQuery, connectionInfo, new QueryExecutionSettings(), Common.GetFileStreamFactory());
+
+            // If:
+            // ... I then execute the query
+            DateTime startTime = DateTime.Now;
+            query.Execute().Wait();
+
+            // Then:
+            // ... The query should complete within 2 seconds since retry logic should not kick in
+            Assert.True(DateTime.Now.Subtract(startTime) < TimeSpan.FromSeconds(2), "Query completed slower than expected, did retry logic execute?");
+
+            // Then:
+            // ... There should be an error on the batch
+            Assert.True(query.HasExecuted);
+            Assert.NotEmpty(query.BatchSummaries);
+            Assert.Equal(1, query.BatchSummaries.Length);
+            Assert.True(query.BatchSummaries[0].HasError);
+            Assert.NotEmpty(query.BatchSummaries[0].Messages);
+        }
+#endif
+
+#endregion
 
         private void VerifyQueryExecuteCallCount(Mock<RequestContext<QueryExecuteResult>> mock, Times sendResultCalls, Times sendEventCalls, Times sendErrorCalls)
         {