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RE: Transport requirements for DNS-like protocols

Patrik Fältström <paf@cisco.com> Sat, 29 June 2002 08:48 UTC

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Date: Sat, 29 Jun 2002 10:11:15 +0200
From: Patrik Fältström <paf@cisco.com>
Subject: RE: Transport requirements for DNS-like protocols
In-reply-to: <7FC3066C236FD511BC5900508BAC86FED21D3B@trestles.internal.realnames.com>
To: Nicolas Popp <nico@realnames.com>, 'Michael Mealling' <michael@neonym.net>, John C Klensin <klensin@jck.com>
Cc: Rob Austein <sra@hactrn.net>, ietf-irnss@lists.elistx.com
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--On 2002-06-28 10.24 -0700 Nicolas Popp <nico@realnames.com> wrote:

> As soon as you do fuzzy matching that forces you to retrieve
> multiple records and rank them, the operational complexity is increased
> ten-fold (and your query response time becomes way more inpredictable
> unless you do a few "right things").

Doing fuzzy-matching is most efficiently done by doing a calculation of a
hash on the search string (something like soundex) and then exact mathing
in the database.

So, fuzzy-matching is for me just another version of "preparation" of the
search string.

    paf

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