Re: How to discover foreign keys (without pulling hair out)

On Thu, 25 Apr 2002, bob lapique wrote:

> I use pgAdminII on Windows. It connects to a PostgreSQL on a Linux PC.
> When you click on an existing table's icon, it shows you a script that
> could have created it (it detects the structure of the table by itself),
> including the foreign keys. That's an easy way. But maybe not very
> elegant...

I have in fact tried that very thing. pgAdminII has a Log View that is
supposed to show all the back-end SQL that it executes in order to show you
what it does. However, all it really does is retrieve the pg_triggers.tgargs
field, which is 6 fields separated by \0's, then it must parse it internally.

I'm looking for a way to parse 'one\000two\000three\000'::bytea into

foo1 | foo2 | foo3
------+------+-------
one | two | three

using only (Postgre)SQL, no external C functions or the like. Ideas? I'm
looking into PL/pgSQL as a solution, but haven't gotten very far yet.

Regards,
Ian Morgan
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Ian E. Morgan Vice President & C.O.O. Webcon, Inc.
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