On Thu, Apr 28, 2016 at 9:56 AM,  <da...@andl.org> wrote:
> Does Postgres provide a convenient way for one process to pass data to
> another using shared memory?

If you are talking about enabling the use of shared memory by 3rd-part
plugins or modules, there is shmem_startup_hook for this purpose.
Another thing that you may want to look at is DSM (dynamic shared
memory), with its interface in dsm.h. An example of use is in
src/test/modules/test_shm_mq.
-- 
Michael


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