Bryce W Nesbitt <bryce1(at)obviously(dot)com> writes:
> SELECT username,last_name
> FROM eg_member ORDER BY username::integer;
> But postgres 7 rejects this with "ERROR: cannot cast type character
> varying to integer".
As a general rule, you need to be more specific than that about which
version you are working with ;-)
You may find that username::text::integer will work, depending on which
7.x this actually is.
regards, tom lane