Tom Lane wrote:
>
> I've built applications that do roughly this sort of thing in Postgres
> (some of the protocol changes in 6.4 were done to make it easier ;-)).
I may misremember, but IIRC some older protocol (or at least libpq)
returned 0 as backend pid to listening client if it was notified by itself.
Currently it returns the actual pid for any backend. Is this what you
changed?
Anyhow we need some _documented_ way to get backend pid (there is one
actually received and stored with "cookie" for Ctrl-C processing, but
AFAIK it is neither documented as being the backend id nor is there a
function to get at it).
For my own use I created a C function pid() but perhaps there should be
something mainstream for this.
---------------
Hannu
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TIP 4: Don't 'kill -9' the postmaster
