password accessibility

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I'm in the process of integrating a jabber server into a
postgresql-based web portal. The portal has a separate postgresql
user for every registered user of the site. Authentication on the
site is easy enough; the site just attempts to connect to the db using
the provided credentials, and if its successful, the user is logged
in. The jabber server needs the passwords (or their md5 hashes)
visible in standard table format for authentication, though. I'd like
to construct a view containing the usernames, passwords, etc in
jabber's required format, but system catalog information doesn't seem
to be accessible to views. Is there any way to pull the information
from the pg_shadow catalog into a view?

Greg Steffensen
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