mysql - Unable to get all columns with select * - mysql

Question

I have following 2 tables t1, t2
CREATE TABLE t1 (
id INT PRIMARY KEY
);
CREATE TABLE t2 (
id INT PRIMARY KEY
);
INSERT INTO t1 VALUES (1),(2),(3);
INSERT INTO t2 VALUES (2),(3),(4);
I am running
select * from t1 left join t2 using(id);
Result:
+----+
| id |
+----+
| 1 |
| 2 |
| 3 |
+----+
On running script:
select t1.id, t2.id from t1 left join t2 using(id);
Result:
+----+------+
| id | id |
+----+------+
| 1 | NULL |
| 2 | 2 |
| 3 | 3 |
+----+------+
select * is supposed to return all the columns, so, why I am not getting 2 rows when I am using select *?
Note: I am using Mysql

Answer 1

as doc says:
Natural joins and joins with USING, including outer join variants, are processed according to the SQL:2003 standard:
Redundant columns of a NATURAL join do not appear. Consider this set of statements:
CREATE TABLE t1 (i INT, j INT);
CREATE TABLE t2 (k INT, j INT);
INSERT INTO t1 VALUES(1, 1);
INSERT INTO t2 VALUES(1, 1);
SELECT * FROM t1 JOIN t2 USING (j);
column j is named in the USING clause and should appear only once in the output, not twice.

Answer 2

This is the normal behavior of the USING clause. Here's a quote from MySQL documentation:
Similarly, in the second SELECT statement, column j is named in the USING clause and should appear only once in the output, not twice.
(JOIN syntax)
And here's from Wikipedia:
[...] any columns mentioned in the USING list will appear only once, with an unqualified name, rather than once for each table in the join.
(JOIN (SQL)