Re: Followup from yesterday's PL/pgSQL fun...

--On Wednesday, May 14, 2003 13:08:23 -0400 Tom Lane <tgl@sss.pgh.pa.us> 
wrote:

> Larry Rosenman <ler@lerctr.org> writes:
>>> Actually, I think you can do it with CREATE CAST.
>
>> The issue (for me) was decoding the function name(s).
>
> I find the 7.3 OID-alias types very helpful for this sort of thing:
>
> regression=# select castsource::regtype, casttarget::regtype,
> castfunc::regprocedure, castcontext from pg_cast limit 1;  castsource |
> casttarget |   castfunc   | castcontext
> ------------+------------+--------------+-------------
>  bigint     | smallint   | int2(bigint) | a
> (1 row)
>
>> I wish there was a \ command to display pg_cast...
>
> There is (\dC).  But it's not very bright --- I don't think you can
> limit the rows displayed at all.
$ psql
Welcome to psql 7.3.2, the PostgreSQL interactive terminal.

Type:  \copyright for distribution terms      \h for help with SQL commands      \? for help on internal slash commands
    \g or terminate with semicolon to execute query      \q to quit
 

ler=# \dC
Did not find any relation named "C".
ler=#

Hrm.
>
>             regards, tom lane



-- 
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 972-414-9812                 E-Mail: ler@lerctr.org
US Mail: 1905 Steamboat Springs Drive, Garland, TX 75044-6749