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From Daniel Noll <dan...@nuix.com.au>
Subject Re: Query for a non-value
Date Wed, 22 Mar 2006 22:35:11 GMT
Nick Atkins wrote:
> Hi there,
> 
> How do I do a query for the value of a field not being equal to
> something?  For example, we all do Query("field:value") but I want to do
> Query("NOT field:value") to essentially return all the documents that do
> not have fields with this value?  I've tried this but Lucene always
> returns no documents when I know there are plenty of documents without
> that field set to that value.

Presumably you're referring to the QueryParser not properly handling the 
case where all clauses are prohibited.

The answer to this has been on the list many times, I answered exactly 
the same question only a short while ago, it involves overriding the 
QueryParser.

Daniel

-- 
Daniel Noll

Nuix Pty Ltd
Suite 79, 89 Jones St, Ultimo NSW 2007, Australia    Ph: +61 2 9280 0699
Web: http://www.nuix.com.au/                        Fax: +61 2 9212 6902

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