On Sun, Nov 2, 2008 at 6:39 PM, Stephen Frost <sfrost@snowman.net> wrote:
> Simon,
>
>> * Higher overhead mapping to original tables and indexes
>
> This just plain isn't true in PG, at least, and I'd think most other
> sensible databases..
Note that, at least in older versions, MySQL completely materialized a
temporary table from a view, then used that for the view. This is
horribly inefficient, and results in a lot of people thinking views
are slow. Not sure if this has been addressed in MySQL yet, don't
really care anymore, since I rarely use mysql for anything anymore.