[plug] auto-increment in mysql

[Craig Ringer]

> Mind my ignorance - I'm just going off my somewhat limited knowledge from
> Information Systems (Year 12 TEE subject that I did extremely well in ;)
> which I have just completed in 2002. We briefly went over what indexes were,
> but never went into detail.

Sorry to jump in, but I'd like to point you to the postgresql 
documentation as a fairly decent introduction to RDBMS tech and 
concepts. No substitute for a good book, but it'll really kick-start you 
in the area.

Craig.