Sorry that this is more of a mysql question, but since most php
programmers use it a lot, i though i might find the answer without
subscribing to mysql list, here goes:
When i do a query from a big table using indexes,it takes for example 5
seconds. Now if i, after
some time repeat the query, the query takes about 0.5 secs.
So far i thought it was because of caching, but now i read mysql (v3.23)
support query cache. So this really gets me wondering, where does the
speed increase come from?

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