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[XQuery Talk Mailing List Archive Home] [By Date] [By Thread] [By Subject] [By Author] [Recent Entries] [Reply To This Message] get highest numbergonzberg at gmx.de gonzberg at gmx.deWed May 14 17:45:17 PDT 2008
Thank you all, as Wolfgang said, I use eXist. If I get you right, Wolfgang, my solution would be to do the max/highest evaluation in my application. All the best, gonzberg -------- Original-Nachricht -------- > Datum: Wed, 14 May 2008 16:11:24 +0200 > Von: Wolfgang <http://x-query.com/mailman/listinfo/talk> > An: > CC: http://x-query.com/mailman/listinfo/talk > Betreff: Re: get highest number > > Or switch to a better XQuery processor. I find it hard to imagine why a > > product should take noticeably longer to evaluate max(//@id) than it > takes > > to evaluate //@id. > > If Gonzberg is using eXist (I remember other posts on the corresponding > lists), I can explain the difference: evaluating //@id is entirely > index-based (as John already suspected). Compared to this, max(//@id) > requires access to the actual attribute nodes, which generates a lot > more IO. Better index-support for aggregate functions would help here, > but that's work in progress. > > Wolfgang > _______________________________________________ > http://x-query.com/mailman/listinfo/talk > http://x-query.com/mailman/listinfo/talk -- 249 Spiele für nur 1 Preis. Die GMX Spieleflatrate schon ab 9,90 Euro. Neu: Asterix bei den Olympischen Spielen: http://flat.games.gmx.de
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