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Re: 8.4 release planning

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Bruce Momjian <bruce(at)momjian(dot)us>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Joshua Brindle <method(at)manicmethod(dot)com>, Ron Mayer <rm_pg(at)cheapcomplexdevices(dot)com>, Josh Berkus <josh(at)agliodbs(dot)com>, "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>, Merlin Moncure <mmoncure(at)gmail(dot)com>, "Jonah H(dot) Harris" <jonah(dot)harris(at)gmail(dot)com>, Gregory Stark <stark(at)enterprisedb(dot)com>, Bernd Helmle <mailings(at)oopsware(dot)de>, Peter Eisentraut <peter_e(at)gmx(dot)net>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: 8.4 release planning
Date: 2009-01-28 22:45:31
Message-ID: 4640.1233182731@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
Bruce Momjian <bruce(at)momjian(dot)us> writes:
> Tom Lane wrote:
>> As the SEPostgres patch is constructed, the planner could *never* trust
>> an FK for optimization since it would have no way to know whether row
>> level permissions might be present (perhaps only for some rows) at
>> execution time.  You could only get back the optimization in builds with
>> SEPostgres compiled out.  That's pretty nasty, especially for packagers
>> who have to decide which build setting will displease fewer users.

> I am afraid that SQL-level row permissions would also cause that
> problem, and I thought they were enabled by default.  (The configure
> flag --enable-selinux only controls SE-Linux support.)

So they would.  However, I've already determined that I'm against
row-level permissions of either flavor ;-)

			regards, tom lane

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