New MS patent: sounds like PG db rules - Mailing list pgsql-general

From Justin Clift
Subject New MS patent: sounds like PG db rules
Date
Msg-id 483BECB5.5040308@salasaga.org
Whole thread Raw
Responses Re: New MS patent: sounds like PG db rules  ("A. Kretschmer" <andreas.kretschmer@schollglas.com>)
List pgsql-general
Hi all,

Haven't delved into PG's rules system for a long time, but to me, this
newly granted Microsoft patent sounds pretty close:

   US Patent 7376668 - Dynamic filtering in a database system
   Issued on May 20, 2008
   http://www.patentstorm.us/patents/7376668/claims.html

Abstract
"A dynamic filtering module receives a request to perform an operation
on data in the database and a input. The dynamic filtering module
provides as an output a modified request to a data access system. The
modified request can include one or more restrictions added to the
original request pertaining to which data will be accessed as a function
of the input."

Am I wrong in thinking that PG provides prior art here?

Regards and best wishes,

Justin Clift

--
Salasaga  -  Open Source eLearning IDE
               http://www.salasaga.org

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