Search fields in multiple tables

Hi,

I have some information about books spread over multiple tables (title, 
authors, ISBN, blurb, publisher, etc.)  Is there any convenient way in 
PostgreSQL to allow a user to search these in a single operation?

If there is, would there be some way to assign weights to the fields?  
E.g. a match on title would rate higher than a match on publisher or on 
blurb.

Regards,

-- Raju
-- 
Raj Mathur                raju@kandalaya.org      http://kandalaya.org/      GPG: 78D4 FC67 367F 40E2 0DD5  0FEF C968
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