Jens Frank wrote: I've rewritten most of the PostgreSQL port in my working copy, it hasn't been committed yet. I'm also changing the way we call the database throughout the codebase. I'm holding my breath hoping people don't make too many commits, because at this stage pretty much any change will cause conflicts. You can see where I'm up to at: http://www.ph.unimelb.edu.au/~tstarling/half-completed_DB_OOP.patch I've decided to cut short the OOP and table name modifications, do some testing, and then commit it, before completing the conversion. It will still work when it's half-converted. The problem with $wgIsXxxx was that it would have required just as much work to implement a port to a third DBMS as it did to implement the second. Instead of DBMS-dependent conditions scattered throughout the codebase, I'm working on having common functions which are efficient for MySQL but can be emulated by any DBMS. I don't know exactly how Oracle differs from PostgreSQL and MySQL, but hopefully the bulk of the work to produce a port should be in the DatabaseOracle subclass rather than throughout the code. -- Tim Starling