| From: | "Jonah H(dot) Harris" <jonah(dot)harris(at)gmail(dot)com> |
|---|---|
| To: | KaiGai Kohei <kaigai(at)ak(dot)jp(dot)nec(dot)com> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: How to get SE-PostgreSQL acceptable |
| Date: | 2009-01-29 05:55:36 |
| Message-ID: | 36e682920901282155x51ccc9afkb0e286bd0e99bdd2@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Wed, Jan 28, 2009 at 9:49 PM, KaiGai Kohei <kaigai(at)ak(dot)jp(dot)nec(dot)com> wrote:
> IIRC, 0racle or M$ has a patent to rewrite WHERE clause for security
> purpose, so Tom suggested it should be implemented using a hook
> deployed within executor.
Yes, it was Oracle. There are a couple newer revisions, but they're all
based primarily on Patent #6487552, Database Fine-grained Access Control,
Filed Oct 5, 1998/Issued Nov 26, 2002. The patent covers defining a
security context, retrieving-defined policies from that context, and
applying those policies by directly calling a security-context-related
stored procedure in the WHERE clause as well as dynamically adding
security-related predicates to the WHERE-clause.
--
Jonah H. Harris, Senior DBA
myYearbook.com
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