SqlServer: Fixed reading some constants of types such as byte, short, Guid

Author: alex-kulakov

Orm/Xtensive.Orm.SqlServer/Sql.Drivers.SqlServer/v09/Translator.cs

@@ -539,8 +539,12 @@ public override string Translate(SqlCompilerContext context, object literalValue
         builder.AppendHexArray(array);
         return builder.ToString();
       }
-      if (literalType==typeof(Guid))
-        return QuoteString(literalValue.ToString());
+      if (literalType == typeof(Guid))
+        return string.Format("CAST ({0} AS UNIQUEIDENTIFIER)", QuoteString(literalValue.ToString()));
+      if (literalType == typeof(byte))
+        return string.Format("CAST({0} as TINYINT)", base.Translate(context, literalValue));
+      if (literalType == typeof(short))
+        return string.Format("CAST({0} as SMALLINT)", base.Translate(context, literalValue));
       if (literalType==typeof (Int64))
         return String.Format("CAST({0} as BIGINT)", literalValue);
       return base.Translate(context, literalValue);