Re: [GENERAL] dblink - custom datatypes don't work

Tom Lane wrote:
> It's not hard.  Start psql, then in another window use ps to determine
> the PID of the connected backend.  (The pg_stat_activity view might help
> too.)  Then
> 
>     gdb /path/to/postgres-executable PID
>     gdb> b whereever
>     gdb> cont
> 
> and away you go.

I'd add that when working with shared libraries, you need to make sure 
they are loaded before you attach to the process (I think there is a way 
to deal with it after the fact, but I'm not sure of the details). To do 
that, either execute a function in the library (e.g. select 
dblink_connect...) or use the LOAD command like this:

regression=# load '$libdir/dblink';
LOAD

HTH,

Joe