i can't help but repost this http://xkcd.com/327/
-- vish On 10 June 2014 07:26, Roger Bell_West <ro...@firedrake.org> wrote: > On Tue, Jun 10, 2014 at 11:59:57AM +0100, Chris Jack wrote: > >Can I suggest you consider including some rudimentary idea of "cost" > >when you're deciding whether to allow the query to run or not. "Cost" > >could be in terms of anticipated rows returned and/or total > >anticipated CPU time. > > Yeah, it shouldn't be that hard to write code to evaluate an > expression and work out how long it'll take to run. > > :-) > > R >