There will be no singularity

create table t (a int, b int, c int);
create view v as 
    select * exclude (a) rename (b as d, c as e) from t
;

CREATE TABLE messages(u UNION(num INT, error VARCHAR));
INSERT INTO messages VALUES (42);
INSERT INTO messages VALUES ('oh my globs');

-- SELECT clause is optional, SELECT * is implied (if not included)
FROM tbl;

-- first 5 rows of the table
FROM tbl LIMIT 5;

-- SELECT can be used after the FROM
FROM tbl SELECT l_orderkey;

-- insert all data from tbl1 into tbl2
INSERT INTO tbl2 FROM tbl1;

TABLE tbl;

SELECT MIN(COLUMNS(*)), COUNT(*) from obs;
SELECT COLUMNS('val[0-9]+') from obs;

SELECT [x + 1 for x in [1, 2, 3]] AS l;