Andres, Jeff,
>> As far as I can tell, the only downside of doing that is that, since hint
>> bits might be set later, it is possible some dirty pages will get written
>> unhinted and then re-dirtied by the hint bit setting, when more aggressive
>> setting would have only one combined dirty write instead. But that seems
>> rather hypothetical, and if it really is a problem we should probably
>> tackle it directly rather than by barring other optimizations.
>
> I am - as evidenced - too tired to think about this properly, but I
> think you might be right here.
Any thoughts on a fix for this we could get into 9.2.5?
--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com