Add tests for lowercase sytnax
@@ -9,6 +9,7 @@ SELECT foo(a)
FROM table1
-- <- keyword
WHERE a = b
+-- <- keyword
-- ^ operator
GROUP BY a, b
-- <- keyword
@@ -17,3 +18,15 @@ ORDER BY lower(a), b
-- <- keyword
-- ^ keyword
-- ^ function
+select a, b::int;
+-- <- keyword
+from table1
+-- <- keyword
+where a = b
+-- <- keyword
+group by a, b
+-- <- keyword
+-- ^ keyword
+order by lower(a), b
+-- <- keyword
+-- ^ keyword
