> I'm the one that Chris mentioned that did the performance tuning on RT.
> Best Practical are really good people to work with, but they will only
> use code that will work across all databases the support. There was one
> query in particular that made really horrible use of OR clauses. I sent
> in details on how to rewrite the query using unions, which changed it
> query from a "execute your query and go make coffee" type of query to
> one that completed in a very reasonable period of time. I was told that
> it wasn't an option because MySQL didn't have Unions.
MySQL 4 has unions...
