Add test for column separator bug

test/expected/sqlserver_20_query_test.out

@@ -22,3 +22,8 @@ SELECT * FROM ODBCQuerySize('sqlserver_fdw', 'select * from sqlserver_test_table
              1
 (1 row)
 
+SELECT * FROM sqlserver_test_table_with_unsupported_initial_column;
+ id | name
+----+------
+  1 | aaaa
+(1 row)

test/fixtures/sqlserver_fixtures.sql

@@ -22,5 +22,9 @@ begin
 -- Create fixture
     create table sqlserver_test_table(id int, name text);
     insert into sqlserver_test_table values (1, 'aaaa');
+
+    create table sqlserver_test_table_with_unsupported_initial_column(ignored varbinary(10), id int, name text);
+    insert into sqlserver_test_table_with_unsupported_initial_column(id, name) values (1, 'aaaa');
+
 end
 go

test/sql/sqlserver_20_query_test_disabled.sql

@@ -1,4 +1,5 @@
 SELECT * FROM sqlserver_test_table;
 SELECT * FROM ODBCTablesList('sqlserver_fdw', 1);
 SELECT * FROM ODBCTableSize('sqlserver_fdw', 'sqlserver_test_table');
-SELECT * FROM ODBCQuerySize('sqlserver_fdw', 'select * from sqlserver_test_table');
+SELECT * FROM ODBCQuerySize('sqlserver_fdw', 'select * from sqlserver_test_table');
+SELECT * FROM sqlserver_test_table_with_unsupported_initial_column;