aliases

where can i find aliases to type , for example INT4 = INT = INTEGER ...
I realy need it to check if function is exists ..
Or how to get oid from same type , but no like select from pg_type

now about plpgsql
i think that will be nice , to possible declare var. with names started
from $ (like functions arguments names $1 .. )

and i tkink thet command EXECUTE should exec not SQL command, but plpgsql
command, Its very good way to create somthing like eval .
Then EXECUTE 'SELECT INTO var 4;'; will be not a problem any more.

and what about my functions to ips addreses and ports ???

thx
ivan