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From Tim Williams <william...@gmail.com>
Subject Re: Query any data
Date Wed, 08 Apr 2009 16:03:02 GMT
On Wed, Apr 8, 2009 at 11:45 AM, addman <addiekong@yahoo.com> wrote:
>
> Hi,
>   Is it possible to create a query to search a field for any value?  I just
> need to know if the optional field contain any data at all.

google for:  lucene field existence

There's no way built in, one strategy[1] is to have a 'meta field'
that contains the names of the fields the document contains.

--tim

[1] - http://www.mail-archive.com/lucene-user@jakarta.apache.org/msg07703.html

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