I'll throw in my vote, I would find this quite useful.
-Glen
> Florian G. Pflug wrote:
>> I plan to submit a proposal for implementing support for
>> read-only queries during wal replay as a "Google Summer of Code 2007"
>> project.
>>
>> I've been browsing the postgres source-code for the last few days,
>> and came up with the following plan for a implementation.
>>
>> I'd be very interested in any feedback on the propsoal - especially
>> of the "you overlooked this an that, it can never work that way" kind ;-)