> On Mon, 2005-01-24 at 09:52 -0800, Josh Berkus wrote: > > [about keeping connections open in web context] > > Ah, clarity problem here. I'm talking about connection pooling tools > > from > > the client (webserver) side, such as Apache::DBI, PHP's pg_pconnect, > > Jakarta's connection pools, etc. Not pooling on the database server side, > > which is what pgPool provides. > > note that these sometimes do not provide connection pooling as such, > just persistent connections (Apache::DBI)
Right. Same thing can be said to pg_pconnect. > > Most of these tools allocate a database connection to an HTTP/middleware > > client, and only release it after a specific period of inactivity. This > > means that you *could* count on "web-user==connection" for purposes of > > switching back and forth to the master -- as long as the > > connection-recycling > > timeout were set higher than the pgPool switch-off period. > > no. you can only count on web-server-process==connection, but not > web-user==connection, unless you can garantee that the same user > client always connects to same web-server process. I have same opinion. > am i missing something ? -- Tatsuo Ishii ---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match