On Wed, May 8, 2013 at 11:03 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
Rodrigo Barboza <rodrigombufrj@gmail.com> writes: > I have a program in C, the createas a connection, do stuff, fork, exit > child and continues life. > Supose that when I create de PGconn, I have 1 active connection in postgres. > When I fork, does it count as a second connection? I mean, will postrges > interpretate 2 active connections or they only share the same connection? > I know that if the child process execute some query, I can get unexpected > results, but it doesn't, so I am safe about that. > I'm only worried that this can increase the number of connections and reach > the limit of max_connections.
No, the child process will just have another reference to the open socket that connects to the server. The reason why it's dangerous to send queries from such a process is exactly that, to the server, it looks like the same connection as the parent process.
