[Xapian-devel] Does OP_NEAR works with stemming?

Shen Li te_quira at hotmail.com
Thu Jun 2 16:19:49 BST 2011


This is so great! I'm gonna try it right now! Thank you so much for making my life easier!
Best,Shen

> Date: Thu, 2 Jun 2011 12:09:30 +0100
> From: olly at survex.com
> To: te_quira at hotmail.com; xapian-devel at lists.xapian.org
> Subject: Re: [Xapian-devel] Does OP_NEAR works with stemming?
> 
> On Tue, May 31, 2011 at 04:14:32AM +0100, Olly Betts wrote:
> > Yes, the issue seems to be stemming - the Z-prefix terms are stemmed
> > forms, and aren't indexed with positional information, so won't work
> > with OP_NEAR.  So if default_op is OP_NEAR or OP_PHRASE, we should be
> > forcing these subqueries to be unstemmed forms.
> > 
> > Not sure how easy that will be to fix.  For now, I'd suggest you just
> > set stem_none if you want to use default_op set to OP_PHRASE or OP_NEAR.
> 
> Fixed in trunk r15548.  Wasn't as bad as I feared.
> 
> Cheers,
>     Olly
 		 	   		  
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