pg_trigger

Hi list,

I'm trying to extract references between tables. Here is the sql:

select
   u.usename,
   p.relname,
   v.usename,
   c.relname,
   t.tgconstrname,
   dumpref(t.tgargs, 4),
   dumpref(t.tgargs, 5)
from
   pg_trigger t,
   pg_proc f,
   pg_class p,
   pg_class c,
   pg_user u,
   pg_user v
where 1=1
   and f.proname='RI_FKey_check_ins'
   and t.tgfoid=f.oid
   and c.oid=t.tgrelid
   and p.oid=t.tgconstrrelid
   and u.usesysid=p.relowner
   and v.usesysid=c.relowner;

I always the following message:

Error while executing the query;
ERROR:  Function 'dumpref(bytea, int4)' does not exist
    Unable to identify a function that satisfies the given argument
types
    You may need to add explicit typecasts

What am I doing wrong ??

Alain Lavigne - Data Administrator - ZAQ.iTv  - E-Mail: alavigne@zaq.com
297 St-Paul, West - Montreal, Quebec, Canada  - H2Y 2A5
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