Re: Distributed searches in Z39.50? from Ray Denenberg, Library of Congress on 2004-04-02 (www-zig@w3.org from April 2004)

From: Ray Denenberg, Library of Congress <rden@loc.gov>
Date: Fri, 2 Apr 2004 09:43:39 -0500
To: "Alan Kent" <ajk@mds.rmit.edu.au>, "ZIG" <www-zig@w3.org>
Message-ID: <2e6f01c418c0$e38ef1c0$849c938c@lib.loc.gov>

From: "Alan Kent" <ajk@mds.rmit.edu.au>
>
> One of the problems in implementing a Z39.50 distributed search
server
> is a search request has to return the exact number of hits in the
> search response packet.  The exact number of records in the final
> result set has to be returned in the search response as there is no
> other way to tell the client later about a revised figure.  This
means
> a server cannot respond until all of the distributed searches it
sends
> out return.

Not entirely true, Alan, as the searchResult-1 definition (see
http://lcweb.loc.gov/z3950/agency/asn1.html#UserInfoFormat-searchResult-1)
was created for the purpose of reporting intermediate and/or partial
results.

--Ray

Received on Friday, 2 April 2004 09:45:35 UTC