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From Erick Erickson <>
Subject Re: performance sorting multivalued field
Date Tue, 22 Jun 2010 14:35:53 GMT
Curiosity is good <G>. Do be aware, though, that the behavior is not
it's just "how things happen to work" and may change without warning....


On Tue, Jun 22, 2010 at 4:01 AM, Marc Sturlese <>wrote:

> >>Well, sorting requires that all the unique values in the target field
> >>get loaded into memory
> That's what I tought, thanks.
> >>But a larger question is whether what your doing is worthwhile
> >>even as just a measurement. You say
> >>"This is good for me, I don't care for my tests". I claim that
> >>you do care
> I just like play with things. First checked the behavior of sorting on
> multiValued field and what I noticed was, let's say you have docs with
> field
> called 'num':
> doc1->num:2;doc2->num:1,num:4;doc3->num:5
> Sorting by the field num what you get is:
> After sorting asc I get: doc2,doc1,doc3.
> The behavior seems to be always the same (I am not saying it works like
> that
> but it's what I've seen in my examples)
> After seeing that I just decided to check the performance. The point is
> simply curiosity.
> --
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