Am Dienstag, 7. Januar 2003 12:47 schrieb Felipe Schnack:
> I was wondering... (a newbie starting to understand how to optimize
> queries)
> In which step of query execution the LIMIT clause is executed? I mean
> I have a query that would return, let's say, 6 rows, but I add a "LIMIT
> 1" in the end of it.
> I would speed up things because I would have less data fetching from
> the database, right?
Limit kicks in quite late as it has to be done after sorting. And it is not
recommended to use LIMIT without ORDER BY.
With kind regards / mit freundlichem Gruß
Holger Klawitter
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Holger Klawitter http://www.klawitter.de
lists(at)klawitter(dot)de