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From Lance Norskog <goks...@gmail.com>
Subject Re: how to do a Parent/Child Mapping using entities
Date Sun, 03 Jan 2010 01:20:08 GMT
[Ryan McKinley] For starters, the order of multi-valued fields should
be maintained, so if you have:

Wait! I thougt documents and fields are sets in the Lucene index -
order is not preserved.

On Thu, Dec 31, 2009 at 7:47 PM, Chris Hostetter
<hossman_lucene@fucit.org> wrote:
>
> : You could easily write your own query parser (QParserPlugin, in Solr's
> : terminology) that internally translates queries like
> :
> :        q = res_url:url AND res_rank:rank
> :
> : into
> :       q = res_ranked_url:"rank url"
> :
> : thus hiding the res_ranked_url field from the user/client.
> :
> : I'm not sure, but maybe it's possible to utilize the order of values within
> : the multi-valued field res_url directly in the newly created parser. This
>
> It is possible to use SpanMaskingQuery ... it lets you build a
> SpanNearQuery that requires a match in one field to be "near" a match in
> another field (ie: at the same position, or within some amount of slop)
>
> so then you could find all docs where "url:A" and "rank:2" both occur at
> the same position (in a multi-valued field) but SpanQueries don't play
> nicely with range queries, so you wouldn't be able to find docs where
> url:A and rank:[* TO 5] at the same position.
>
>
>
> -Hoss
>
>



-- 
Lance Norskog
goksron@gmail.com

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