PEAR, MDB2 and MDB2_Driver_pgsql

Hi, So i solved my problem with Pager, MDB2...therefore thanks a lot to everybody for your support. I have nevertheless still 1 question to which i need help. I would like to understand how MDB2_Driver_pgsql and MDB2 class are linked to each other ? i was thinking that the first one is derived from the MDB2 but it is not. MDB2_Driver_pgsql has almost the same function that MDB2... So i would like to understand how MDB2_Driver_pgsql works ? Could you give me an example where : - there we open a connection to a pgsql db - where there is a query - where we display the result of this query ? because i have the feeling that every time we come back to MDB2::connect, MDB2::fetchrow,... thanks a lot, -- Alain ------------------------------------ Windows XP SP2 PostgreSQL 8.1.4 Apache 2.0.58 PHP 5