Perhaps the confusion comes from the asymmetry
between +X and -X. I.e., for the query:
A B -C +D
one might think that, similar to how -C only disqualifies docs
containing C (but not qualifying docs not containing C), also
+D only disqualifies docs not containing D. But this is
inaccurate, because +D, in addition to disqualifying
docs not containing D, also qualifies docs containing D.
The modified query that Steven suggested:
+(A B) -C +D
removes this asymmetry, because specifying +(A B) means
that D is not anymore sufficient to qualify a doc.
Hope this helps (otherwise let this reply be forever disqualified : - ) )
Doron
On Dec 18, 2007 9:28 PM, Steven A Rowe wrote:
Hi Rakesh,
This doesn't look like a user-generated query. Have you considered
building the Query via the API instead of using QueryParser?
With QueryParser, you should get the results you want with syntax like:
+(i_title:indoor* OR i_description:indoor*) -i_published:false
+i_topicsClasses.id:1_1_*_*
Have you tried this yet?
Steve
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Hi Rakesh,
This doesn't look like a user-generated query. Have you considered
building the Query via the API instead of using QueryParser?
With QueryParser, you should get the results you want with syntax like:
+(i_title:indoor* OR i_description:indoor*) -i_published:false
+i_topicsClasses.id:1_1_*_*
Have you tried this yet?
Steve
On 12/18/2007 at 1:58 PM, Rakesh Shete wrote:
Thanks for the suggestion Steve. My problem is with getting
the correct results. Let me put in words the query :
Fetch all documents such that the search string "indoor*" is
either part of the 'i_title' field or 'i_description' field,
eliminate if not published (-i_published:false) but should
have topic id of the form "1_1_*_*" (i_topicsClasses.id:1_1_*_*)
i_title:indoor* i_description:indoor* -i_published:false
+i_topicsClasses.id:1_1_*_* returns me extra results which
should not be fetched.
-- Regards,
Rakesh Shete
ryParser/QueryParser.html#setDefaultOperator(org.apache.lucene
.queryParser.QueryParser.Operator)>
PostThanks for the suggestion Steve. My problem is with getting
the correct results. Let me put in words the query :
Fetch all documents such that the search string "indoor*" is
either part of the 'i_title' field or 'i_description' field,
eliminate if not published (-i_published:false) but should
have topic id of the form "1_1_*_*" (i_topicsClasses.id:1_1_*_*)
i_title:indoor* i_description:indoor* -i_published:false
+i_topicsClasses.id:1_1_*_* returns me extra results which
should not be fetched.
-- Regards,
Rakesh Shete
Subject: RE: Lucene multifield query problem
Date: Tue, 18 Dec 2007 13:26:24 -0500
From: [email protected]
To: [email protected]
Hi Rakesh,
Set the default QueryParser operator to AND (default default operator
:) is OR):
<http://lucene.apache.org/java/2_2_0/api/org/apache/lucene/queDate: Tue, 18 Dec 2007 13:26:24 -0500
From: [email protected]
To: [email protected]
Hi Rakesh,
Set the default QueryParser operator to AND (default default operator
:) is OR):
ryParser/QueryParser.html#setDefaultOperator(org.apache.lucene
.queryParser.QueryParser.Operator)>
Steve
On 12/18/2007 at 1:22 PM, Rakesh Shete wrote:
Hi all,
I am facing problem with the following multifield query:
i_title:indoor* i_description:indoor* -i_published:false
+i_topicsClasses.id:1_1_*_*
The above query returns me even results which should not be
there. Ideally I would like the query resullts as:
(i_title:indoor* i_description:indoor* -i_published:false)
AND (i_topicsClasses.id:1_1_*_*)
i.e. The intersection of the first part and second part.
But what is happening currently is that I get a union of the
first part and second part, i.e., whatever results are
returned by "i_title:indoor* i_description:indoor*
-i_published:false" are combined (union) with results
returned by "+i_topicsClasses.id:1_1_*_*".
How do I write a query that returns me results which are an
intersection of the above 2 parts?
--Regards,
Rakesh S
_________________________________________________________________
Hi all,
I am facing problem with the following multifield query:
i_title:indoor* i_description:indoor* -i_published:false
+i_topicsClasses.id:1_1_*_*
The above query returns me even results which should not be
there. Ideally I would like the query resullts as:
(i_title:indoor* i_description:indoor* -i_published:false)
AND (i_topicsClasses.id:1_1_*_*)
i.e. The intersection of the first part and second part.
But what is happening currently is that I get a union of the
first part and second part, i.e., whatever results are
returned by "i_title:indoor* i_description:indoor*
-i_published:false" are combined (union) with results
returned by "+i_topicsClasses.id:1_1_*_*".
How do I write a query that returns me results which are an
intersection of the above 2 parts?
--Regards,
Rakesh S
_________________________________________________________________
ads for free - to sell, rent or even buy.www.yello.in
http://ss1.richmedia.in/recurl.asp?pid=186
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