umut orhan <umut_angelfire@yahoo.com> writes:
> I would like to set the block size used in buffer cache to a specific
> value which is greater than 32KB (let's say --with-block-size=256). Is
> there are way to do that?
No, not without major surgery on the representation of item pointers.
What makes you think there would be any benefit to such large block
sizes?
regards, tom lane
