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Re: [Koha-devel] planning for search rewrite, need feedback
From: |
paul POULAIN |
Subject: |
Re: [Koha-devel] planning for search rewrite, need feedback |
Date: |
Mon Jan 19 05:38:00 2004 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686; fr-FR; rv:1.4) Gecko/20030630 |
Pat Eyler a écrit :
Yesterday and again this morning, discussions on the #koha irc channel
turned to searching and a decision was made to develop a "google-like
query syntax" (GQS) for searches.
Some feedback, based on MARC Search in 2.0.0 intranet.
In general, we want to develop a
much better search back-end that:
- can optimize queries
The MARC search builds queries that are always indexed. Not depending on
the complexity of the query. So, we always get a very fast answer :-)
- 'lowers the bar' for developers who want to work on localized
improvements for searches
- easily spans the range from very simple to very complex queries
The API of the search is quite extensible : you passes some arrays, that
contains the search.
It is really easy to add in the marc search features like :
title <op> <value>
author <op> <value>
before (or after) the actual
<choose field> <op> <value>
<choose field> <op> <value>
That is, I agree, not fast enough for 90% of the requests.
In fact, in Esiee, a student already worked on a "wrapper" for non-marc
searches, that transforms a non marc (& strange) search info a MARC (&
always indexed one). He did not commit because we hadn't 2 branches at
this moment. I put him in cc of this mail to ask him to commit this nice
wrapper to CVS (HEAD branch)
--
Paul POULAIN
Consultant indépendant en logiciels libres
responsable francophone de koha (SIGB libre http://www.koha-fr.org)