On 6/8/23 10:56, Dave Cramer wrote:




On Thu, 8 Jun 2023 at 10:31, Jan Wieck <j...@wi3ck.info <mailto:j...@wi3ck.info>> wrote:

    On 6/8/23 09:53, Jan Wieck wrote:
     > On 6/8/23 09:21, Dave Cramer wrote:
     > The server doesn't know about all the clients of the pooler, does
    it? It
     > has no way of telling if/when a client disconnects from the pooler.

    Another problem that complicates doing it in the server is that the
    information require to (re-)prepare a statement in a backend that
    currently doesn't have it needs to be kept in shared memory. This
    includes the query string itself. Doing that without shared memory in a
    pooler that is multi-threaded or based on async-IO is much simpler and
    allows for easy ballooning.


I don't expect the server to re-prepare the statement. If the server responds with "statement doesn't exist" the client would send a prepare.

Are you proposing a new libpq protocol version?


Jan


Reply via email to