SELECT w.d + w.e AS c FROM w AS w;
SELECT CONCAT("w"."d", "w"."e") AS "c" FROM "w" AS "w";

SELECT CAST(w.d AS DATE) > w.e AS a FROM w AS w;
SELECT CAST("w"."d" AS DATE) > CAST("w"."e" AS DATE) AS "a" FROM "w" AS "w";

SELECT CAST(1 AS VARCHAR) AS a FROM w AS w;
SELECT CAST(1 AS VARCHAR) AS "a" FROM "w" AS "w";

SELECT CAST(1 + 3.2 AS DOUBLE) AS a FROM w AS w;
SELECT 1 + 3.2 AS "a" FROM "w" AS "w";