Re: POSIX shared memory redux

"A.M." <agentm@themactionfaction.com> writes:
> The goal of this work is to address all of the shortcomings of previous POSIX shared memory patches as pointed out
mostlyby Tom Lane.
 

It seems like you've failed to understand the main shortcoming of this
whole idea, which is the loss of ability to detect pre-existing backends
still running in a cluster whose postmaster has crashed.  The nattch
variable of SysV shmem segments is really pretty critical to us, and
AFAIK there simply is no substitute for it in POSIX-land.
        regards, tom lane