Boost documents based on a constant value in a field

[Jon Drukman <jd...@gmail.com>]

I have a very simple schema: two integers and two text fields.

<fields>
    <field name="answer_id" type="integer" indexed="true" stored="true" 
required="true" />
    <field name="question" type="text" indexed="true" stored="true"/>
    <field name="question_source" type="integer" indexed="true" 
stored="true"/>
    <field name="answer" type="text" indexed="true" stored="false"/>
</fields>

I want to do full text searching on the text fields as normal.  However, 
I want to boost all documents where question_source == 3 to the top. 
How do I do that?

So the results should be:

All documents where question_source == 3 first, sorted by relevance in 
the text fields.

All other documents sorted by text field relevance.

How do I achieve this?

-jsd-

Re: Boost documents based on a constant value in a field

[Wangsheng Mei <ha...@gmail.com>]

you would use bq parameter to boost question_source==3 documents first.
similar to:
http://solr/select?q=your_query&qt=dismax&bq=question_source:3^1000

2010/2/6 Jon Drukman <jd...@gmail.com>

> I have a very simple schema: two integers and two text fields.
>
> <fields>
>   <field name="answer_id" type="integer" indexed="true" stored="true"
> required="true" />
>   <field name="question" type="text" indexed="true" stored="true"/>
>   <field name="question_source" type="integer" indexed="true"
> stored="true"/>
>   <field name="answer" type="text" indexed="true" stored="false"/>
> </fields>
>
> I want to do full text searching on the text fields as normal.  However, I
> want to boost all documents where question_source == 3 to the top. How do I
> do that?
>
> So the results should be:
>
> All documents where question_source == 3 first, sorted by relevance in the
> text fields.
>
> All other documents sorted by text field relevance.
>
> How do I achieve this?
>
> -jsd-
>
>


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