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Re: Strategy needed for picking random rows
Posted by: Øystein Grøvlen
Date: September 08, 2011 01:08AM

Hi Joachim,

What is the purpose of the join? It seems to give the same rows as the inner query.

How random does the result need to be? One idea is to use a prepared statement with "LIMIT ?, 200", and compute a random number for the parameter on each execution. Will not give random order, but the set of records should be different.
(I have not tried this, so no guarantees about performance.)

Øystein Grøvlen,
Senior Principal Software Engineer,
MySQL Group, Oracle,
Trondheim, Norway

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