PostgreSQL 7.0.3 on sparc-sun-solaris2.6, compiled by gcc 2.95.2
drop table tryam;
create table tryam (x text);
insert into tryam values ('22');
insert into tryam values ('1');
test=# select x from tryam union select x from tryam;x
----221
(2 rows)
test=# select x from tryam union select x from tryam order by x;x
----122
(2 rows)
test=# select x from tryam union select x from tryam order by length(x);x
----122122
(4 rows)
???
Vadim
