ALTER TABLE IF EXISTS testschema."table_3_$%{}[]()&*^!@""'`\/#"
    ADD COLUMN "col_4_$%{}[]()&*^!@""'`\/#" bigint GENERATED ALWAYS AS (1 + 2 + 3) STORED;

COMMENT ON COLUMN testschema."table_3_$%{}[]()&*^!@""'`\/#"."col_4_$%{}[]()&*^!@""'`\/#"
    IS 'Comment for create';
