To say I am new to PostgreSQL is an understatement. As such I have spent a great deal of time in the last couple of days going over the various manuals at http://www.php.net/manual/en/ref.pgsql.php and at http://www.postgresql.org/docs/9.1/interactive/index.html .
Short form of my question:
Do different users (logged in from separate IP addresses) utilize the same connection to a PostgreSQL data base behind the scenes?
Long form of the question:
In a given php script the database connection $connection is defined near the very beginning of script. That connection is then used throughout the rest of the script via $GLOBALS['connection']. Thus in that script a given user simply reuses the same connection over and over again.
A second user using the same script while logging in from a different location also uses a single copy of the connection.
From the manual (at http://www.php.net/manual/en/function.pg-connect.php):
If a second call is made to pg_connect() with the same connection_string as an existing connection, the existing connection will be returned unless you pass PGSQL_CONNECT_FORCE_NEW as connect_type.
So, does this mean that both users are sharing the same connection (unless the PGSQL_CONNECT_FORCE_NEW flag is sent)?
