Fix issue 192

Dapper NET40/SqlMapper.cs

@@ -2714,7 +2714,7 @@ public static void PackListParameters(IDbCommand command, string namePrefix, obj
                     }
                 }
 
-                var regexIncludingUnknown = @"([?@:]" + Regex.Escape(namePrefix) + @")(\s+(?i)unknown(?-i))?";
+                var regexIncludingUnknown = @"([?@:]" + Regex.Escape(namePrefix) + @")(?!\w)(\s+(?i)unknown(?-i))?";
                 if (count == 0)
                 {
                     command.CommandText = Regex.Replace(command.CommandText, regexIncludingUnknown, match =>

DapperTests NET45/Tests.cs

@@ -705,6 +705,24 @@ public void TestMultiMapArbitraryMaps()
             }
         }
 
+        public void Issue157_ClosedReaderAsync()
+        {
+            using(var conn = Program.GetOpenConnection())
+            {
+                var args = new { x = 42 };
+                const string sql = @"select 123 as [A], 'abc' as [B] where @x=42";
+                var row = conn.QueryAsync<SomeType>(new CommandDefinition(
+                    sql, args, flags:CommandFlags.None)).Result.Single();
+                row.IsNotNull();
+                row.A.IsEqualTo(123);
+                row.B.IsEqualTo("abc");
+
+                args = new { x = 5 };
+                conn.QueryAsync<SomeType>(new CommandDefinition(
+                    sql, args, flags: CommandFlags.None)).Result.Any().IsFalse();
+            }
+        }
+
         public void TestAtEscaping()
         {
             using (var connection = Program.GetOpenConnection())

Tests/Tests.cs

@@ -4041,6 +4041,31 @@ public void Issue151_ExpandoObjectArgsExec()
             ((string)row.Name).Equals("abc");
         }
 
+        public void Issue192_InParameterWorksWithSimilarNames()
+        {
+            var rows = connection.Query(@"
+declare @Issue192 table (
+    Field INT NOT NULL PRIMARY KEY IDENTITY(1,1),
+    Field_1 INT NOT NULL);
+insert @Issue192(Field_1) values (1), (2), (3);
+SELECT * FROM @Issue192 WHERE Field IN @Field AND Field_1 IN @Field_1",
+    new { Field = new[] { 1, 2 }, Field_1 = new[] { 2, 3 } }).Single();
+            ((int)rows.Field).IsEqualTo(2);
+            ((int)rows.Field_1).IsEqualTo(2);
+        }
+
+        public void Issue192_InParameterWorksWithSimilarNamesWithUnicode()
+        {
+            var rows = connection.Query(@"
+declare @Issue192 table (
+    Field INT NOT NULL PRIMARY KEY IDENTITY(1,1),
+    Field_1 INT NOT NULL);
+insert @Issue192(Field_1) values (1), (2), (3);
+SELECT * FROM @Issue192 WHERE Field IN @µ AND Field_1 IN @µµ",
+    new { µ = new[] { 1, 2 }, µµ = new[] { 2, 3 } }).Single();
+            ((int)rows.Field).IsEqualTo(2);
+            ((int)rows.Field_1).IsEqualTo(2);
+        }
 #if POSTGRESQL
 
         class Cat