RE: [search-ws] faceted search

[Rob Sanderson <azaroth@liverpool.ac.uk>]

Scan does work, you just have to call it once per index that you want to
generate facets for.

Rob

On Fri, 2008-09-19 at 16:02 -0400, LeVan,Ralph wrote:
> Scan doesn't work.  A scan response assumes that all the terms returned
> are from the index in the request. So, there is no indication of the
> source index for the individual terms.  Facets can come from many
> indexes.  Languages are popular facets and they'd come from a language
> index.  Similarly for dates.
> 
> We need a response richer than scan.
> 
> In addition, the current proposal would require 2 interactions with the
> server; once to do the search and once to get back the facets.  My
> proposal returns the facets with the search response.
> 
> My response goes into the extraResponseData and looks like this:
> <facetReport>
>   <facets index="indexName" count="numberOfFacets">
>     <facet count="numberOfMatchingDocuments">term</facet>
>     </facets>
>   </facetReport>
> 
> As you can see, I clump my facets by index.  If you prefer to have a
> flatter response and leave the clumping to the client, then the response
> could be:
> <facets count="numberOfFacets">
>   <facet index="indexName" count="numberOfMatchingDocuments>term</facet>
>   </facets>
> 
> The count on the facets element could be omitted.  Some applications
> prefer not to have to count the number of subelements.
> 
> Ralph
> 
> 
> 
> > -----Original Message-----
> > From: Ray Denenberg, Library of Congress [mailto:rden@loc.gov]
> > Sent: Friday, September 19, 2008 3:41 PM
> > To: search-ws@lists.oasis-open.org
> > Subject: Re: [search-ws] faceted search
> > 
> > Ralph:
> > 
> > "How about a flag on the request that says that you want facets
> > returned
> > in the search response?"
> > 
> > But how would they be presented in a search response? I think the
> > reason for
> > suggesting scan is that the scan response is essentially how you want
> > the
> > facets presented.
> > 
> > --Ray
> > 
> > 
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> 
> 
> 
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