Multiple database + pconnect issues

[eluser]Nanodeath[/eluser]
I'm reluctant to force a new connection whenever possible as this defeats the purpose of having persistent connections in the first place (and may cause some exploding with regards to the maximum number of connections the server can have). However, this may be in line with existing CI thinking considering mysql's db_connect always forces a new connection...on the other hand, postgre's db_connect never forces a new connection, even though it *could*. I don't know the reasoning behind this. So...I think we should wait for official input here before we go modifying the classes.

As an aside I think we could do the solution for odbc you listed above for mysql as well (maybe).