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From "Mark Ferguson" <>
Subject Re: Dismax query parser with different field classes
Date Fri, 02 Jan 2009 21:33:37 GMT

It looks like a boost query will accomplish what I am looking for quite


On Wed, Dec 31, 2008 at 5:29 PM, Mark Ferguson <>wrote:

> Hello,
> I have a set of documents in which I have different classes of fields that
> I would like to search separately. For example, I would like to search the
> HTML body and title of a webpage using one set of keywords, and the page
> author using another set. I cannot use the dismax parser for this problem
> because all keywords will search across all the query fields. However, I
> like the dismax query parser because it handles matching and scoring very
> nicely.
> I read one suggestion on this group which was to make one of the queries a
> query filter. So for example, I may use the dismax query parser to search
> the body and title of a webpage, then use a filter query for the author.
> There are two problems with this approach in regards to what I need:
>   1. The filter query does not affect scoring, but I need the scoring to be
> influenced by the results of all fields being searched.
>   2. A filter query will do a simple AND or OR filter, while I would need
> the search to be an OR search with higher scoring for multiple matches
> (related to the first problem).
> I think what I need is a dismax parser into which the parsed query will not
> just contain all keywords for all fields, but into which you can specify
> which fields correspond to which sets of keywords. Has anything like this
> been tackled before? If not, can someone help point me in the right
> direction for how I would build this myself? Thanks very much for your time.
> Regards,
> Mark Ferguson

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