DC
просто при, условно, INSERT ... SELECT это тако геморройно обходить
select 2 as x from (select 1 x) as t where x=1;
0 rows in set. Elapsed: 0.002 sec.
select 2 as x from (select 1 x) as t where t.x=1;
┌─x─┐
│ 2 │
└───┘
1 rows in set. Elapsed: 0.001 sec.
