Ben <bench@silentmedia.com> writes:
> You want stuff like last_login::int4::abstime
> This should be a FAQ, because I also spent forever in frustration until
> somebody helped me out with the above, which I've since passed on to
> many people.
BTW: as of 7.3 the available casts are directly documented by the
pg_cast system catalog. Development sources (7.4-to-be) have a \dC
command to display pg_cast's contents conveniently, but in 7.3 you can
do it the hard way:
select castsource::regtype, casttarget::regtype from pg_cast;
In prior versions you could look in pg_proc for conversion functions,
but this did not tell you about binary-equivalence casts.
regards, tom lane
