>>>> 2011/05/14 21:47 +0200, misiaq >>>> You're right about explain. That is why I suggested to use explain EXTENDED and then SHOW WARNINGS. Second query will show you the optimizer output. As far as I understand - that was the par of your question. <<<<<<<< Yes, I did that. That output showed nothing at all interesting about the NULLIF that interests me. It was only an expansion like those found in the dumps, only fuller.
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