Re: announce: the "Join Over Histograms" paper
- From: "Thomas Day" <tomdaytwo@xxxxxxxxx>
- To: oracle-l <oracle-l@xxxxxxxxxxxxx>
- Date: Wed, 25 Apr 2007 15:14:57 -0400
Would I be correct in saying that if you have data that is, or could be,
foreign keyed you should not generate histograms, since the CBO default will
produce a better map than the formula?
Especially if your foreign keys are to look-up tables.
I found your comments about possible bugs (loop overruns and weighing high
values more than low values) very interesting.
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