"Thou Shall Not Code Count Queries"
This appeared in the Vanilla offices this morning:

"Thou shall not code count queries - blessed are those that cache counts"
We've had a couple near-incidents lately as a result of attempting to count things via count() query. Something to beware of in your own addons! It just won't scale.
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I presume you knew this already, but had some cases where you thought you might be able to get away with it.
A tutorial on using the cache methods in vanilla would be useful!
I am pretty sure I do this. I really suck a making scalable SQL it seems.
Thanks for the heads up.
Thanks for the notice!
It is not easy to do it. It is kind of the reason for no-SQL movement. It is not the query language so much as the underlying engines.