Andrew Dunstan <andrew@dunslane.net> writes:
> Tom Lane wrote:
>> That's already documented not to work, and not for any hidden
>> implementation reason: you'd have a conflict on the Unix-domain socket
>> name.
> unless you use a different socket directory.
Hmm ... but the OP didn't mention any such thing. In any case I think
he's misdiagnosed his problem, because the shmem code *should* ignore
pre-existing shmem segments that are already in use --- see the loop in
PGSharedMemoryCreate.
regards, tom lane