[Xapian-discuss] Query / Database question

[Bill Crawford]

On Wednesday 21 Feb 2007, Ross Lawley wrote:

> i.e. Categories might be: car, bike and bicycle.
> 
> The user may want to search:
> 
> "bmw london" and select the car category
> or
> "nottingham" and select all categories
> 
> Is that something that is easy to implement through the Xapian query
> interface?  Or should I be using different xapian databases per category
> type?

I've done something similar by storing metadata as "key:value" terms without 
any position information, added to the "real" terms from the document; these 
terms cannot appear as part of real data because of the way I split the data 
to index. You'd add "category:car" or whatever.

Another way is the "add_prefix" and "add_boolean_prefix" QueryParser methods.

> Ross

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