[SQL] SQL to retrieve foreign keys

[Colleen Williams]

Hi,

I would like to write some SQL to extend the phpPgAdmin tool where it only 
displays primary keys related to a table. I have looked at the programmers 
doco and searched the discussions on foreign keys but was not able to 
decipher how to write the SQL. It is probably really trivial for someone 
who knows how the PostgreSQL catalog tables are related. Can someone please 
help me. Many Thanks.

Colleen.