[TYPO3-dev] Optimizing last 20 query

[John Angel]

>> It makes things even worse. Now we have "Using temporary":
>
> But are that a temporary table in memory or on disk?

Dmitry said it is worst case scenario?


> If in memory and
> the orginal source tables are very large it can become a preformance
> boost, especially if you want to make the query several times during the
> same session.

No, there aren't same several queries at all, it is cached in file right 
away.