[development] Do not let postgresql hold back great patches

[Konstantin Käfer]

> IMO, we need to focus on Drupal SQL[1] and not MySql SQL or  
> Postgresql SQL or Oracle SQL for coding purposes.  Another layer of  
> abstraction handles the nitty gritty of each different DB.

http://adodb.sourceforge.net/. We don't want to go that route.

~Konstantin