Re: 2 distinct connections
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On May 27 09:37, Martin Marques wrote: > We're working on a project using PHP and PostgreSQL, mainly trying to work > in an OOP fashion. The project has quite a good amount of code, and a DB > Object called DB_Bib that has all the query methods. I also have a generic > DB object (DB_Main) which has code to establesh the connection, and from > which my DB_bib Inerits the DB connection. > > The thing is that I made a new class called DB_Debug which also inherits > from DB_Main, and is there to have debugging data inserted into a table in > the database. > > I noticed that when the two objects are started (they both call the > connection method using the same connection string) php doesn't > initiate to distinct connections, but 1 connection within commands from > both objects get passed to the DB server. > > The problem is that query commands from the DB_Debug object and from the > DB_Bib object get mixed up in the same connection, making it deficult to > know when to make a commit. As Cornelia Boenig suggested, you can force pg_connect() to establish a new connection on every call. Also if you don't want to exhaust max_connections limit, you can serialize queries using semaphores (or mutex). Regards.