Search on a large object?

I am porting a web based forum cgi to PHP and PostgreSQL. My main
problem is that I need to use large objects to store the message
bodies since some of them exceed 8k. The existing forum software
allow searching on the bodies of the messages. I don't think I
can put the Oid of a large object in a WHERE and have do anything
useful :) I know that I could search the large objects with PHP
but that doesn't seem very efficient.

Searching a large object for a text string seems like something
that somebody must have done before but I can't find anything in
the archives about it. I think it is going to require something
in C to enable searching the LO in the WHERE.

I looked at MySql and it seems that its "large objects" can do this
but I'd rather not go that way.

Anybody have any suggestions for me?

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Christopher Weimann SysAdmin Wall Internet LLC.
Email: cweimann(at)wallnet(dot)com PO Box 255
Web: http://www.wallnet.com/~cweimann Manasquan NJ, 08736
732-223-1777
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