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Posted to java-user@lucene.apache.org by "Kipping, Peter" <Pe...@taylorandfrancis.com> on 2005/04/01 18:13:41 UTC
RE: FilteredQuery and Boolean AND
Any ideas on this? I have purchased your book, Lucene in Action, which
is quite good. To make things easier, consider the example on p212. In
item 4, when you combine the queries, what happens you combine them in
and AND fashion? The book only has OR, which works. Although it may
work since the book only has one filtered query, but what if you made
them both filtered queries and ANDed them?
Thanks,
Peter
-----Original Message-----
From: Kipping, Peter [mailto:Peter.Kipping@taylorandfrancis.com]
Sent: Friday, March 25, 2005 10:34 AM
To: java-user@lucene.apache.org
Subject: FilteredQuery and Boolean AND
I have the following query structure:
BooleanQuery q2 = new BooleanQuery();
TermQuery tq = new TermQuery(new Term("all_entries", "y"));
FilteredQuery fq = new FilteredQuery(tq, ft);
FilteredQuery fq2 = new FilteredQuery(tq, ft2);
q2.add(fq, false, false);
q2.add(fq2, false, false);
The two filters are searches over numeric ranges. I'm using filters so
I don't get the TooManyBooleanClauses Exception. And my TermQuery tq is
just a field that has 'y' in every document so I can filter over the
entire index. The last two lines I am creating a boolean OR, and
everything works fine. I get back 30 documents which is correct.
However when I change the last two lines to create an AND:
q2.add(fq, true, false);
q2.add(fq2, true, false);
I still get back 30 documents, which is not correct. It should be 0.
What's going on with FilteredQuery?
Thanks,
Peter
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Re: FilteredQuery and Boolean AND
Posted by Chris Hostetter <ho...@fucit.org>.
Bugged...
http://issues.apache.org/bugzilla/show_bug.cgi?id=34279
: : > BooleanQuery q2 = new BooleanQuery();
: : > TermQuery tq = new TermQuery(new Term("all_entries", "y"));
: : > FilteredQuery fq = new FilteredQuery(tq, ft);
: : > FilteredQuery fq2 = new FilteredQuery(tq, ft2);
: : > q2.add(fq, false, false);
: : > q2.add(fq2, false, false);
-Hoss
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Re: FilteredQuery and Boolean AND
Posted by Chris Hostetter <ho...@fucit.org>.
Peter's problem intrigued me, so I wrote my own test case using two simple
Filters that filter out all but the first (or last) doc. I seem to be
getting the same results he is, which is certianly. see attached test case.
while this definitely seems like a bug, it also seems like a fairly
inefficinent way of approaching hte problem in general, instead of:
BooleanQuery containing:
a) FilteredQuery wrapping:
Query for "all" -- filtered by -- RangeFilter #1
b) FilteredQuery wrapping:
Query for "all" -- filtered by -- RangeFilter #2
...it seems like it would make more sense to use...
FilterQuery wrapping:
Query for all -- filtered by -- ChainedFilter containing:
a) RangeFilter #1
b) RangeFilter #2
: Date: Fri, 1 Apr 2005 13:29:04 -0500
: From: Erik Hatcher <er...@ehatchersolutions.com>
: Reply-To: java-user@lucene.apache.org
: To: java-user@lucene.apache.org
: Subject: Re: FilteredQuery and Boolean AND
:
: Peter,
:
: Could you provide a straight-forward test case that indexes a few
: documents into a RAMDirectory and demonstrates the problem you're
: having with AND'd FilteredQuery's?
:
: Give me something concrete and simple and I'll dig into it further.
:
: Erik
:
: On Apr 1, 2005, at 11:13 AM, Kipping, Peter wrote:
:
: > Any ideas on this? I have purchased your book, Lucene in Action, which
: > is quite good. To make things easier, consider the example on p212.
: > In
: > item 4, when you combine the queries, what happens you combine them in
: > and AND fashion? The book only has OR, which works. Although it may
: > work since the book only has one filtered query, but what if you made
: > them both filtered queries and ANDed them?
: >
: > Thanks,
: > Peter
: >
: > -----Original Message-----
: > From: Kipping, Peter [mailto:Peter.Kipping@taylorandfrancis.com]
: > Sent: Friday, March 25, 2005 10:34 AM
: > To: java-user@lucene.apache.org
: > Subject: FilteredQuery and Boolean AND
: >
: > I have the following query structure:
: >
: > BooleanQuery q2 = new BooleanQuery();
: > TermQuery tq = new TermQuery(new Term("all_entries", "y"));
: > FilteredQuery fq = new FilteredQuery(tq, ft);
: > FilteredQuery fq2 = new FilteredQuery(tq, ft2);
: > q2.add(fq, false, false);
: > q2.add(fq2, false, false);
: >
: > The two filters are searches over numeric ranges. I'm using filters so
: > I don't get the TooManyBooleanClauses Exception. And my TermQuery tq
: > is
: > just a field that has 'y' in every document so I can filter over the
: > entire index. The last two lines I am creating a boolean OR, and
: > everything works fine. I get back 30 documents which is correct.
: >
: > However when I change the last two lines to create an AND:
: >
: > q2.add(fq, true, false);
: > q2.add(fq2, true, false);
: >
: > I still get back 30 documents, which is not correct. It should be 0.
: > What's going on with FilteredQuery?
: >
: > Thanks,
: > Peter
: >
: >
: > ---------------------------------------------------------------------
: > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
: > For additional commands, e-mail: java-user-help@lucene.apache.org
: >
: >
: >
: >
: > ---------------------------------------------------------------------
: > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
: > For additional commands, e-mail: java-user-help@lucene.apache.org
:
:
: ---------------------------------------------------------------------
: To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
: For additional commands, e-mail: java-user-help@lucene.apache.org
:
-Hoss
Re: FilteredQuery and Boolean AND
Posted by Erik Hatcher <er...@ehatchersolutions.com>.
Peter,
Could you provide a straight-forward test case that indexes a few
documents into a RAMDirectory and demonstrates the problem you're
having with AND'd FilteredQuery's?
Give me something concrete and simple and I'll dig into it further.
Erik
On Apr 1, 2005, at 11:13 AM, Kipping, Peter wrote:
> Any ideas on this? I have purchased your book, Lucene in Action, which
> is quite good. To make things easier, consider the example on p212.
> In
> item 4, when you combine the queries, what happens you combine them in
> and AND fashion? The book only has OR, which works. Although it may
> work since the book only has one filtered query, but what if you made
> them both filtered queries and ANDed them?
>
> Thanks,
> Peter
>
> -----Original Message-----
> From: Kipping, Peter [mailto:Peter.Kipping@taylorandfrancis.com]
> Sent: Friday, March 25, 2005 10:34 AM
> To: java-user@lucene.apache.org
> Subject: FilteredQuery and Boolean AND
>
> I have the following query structure:
>
> BooleanQuery q2 = new BooleanQuery();
> TermQuery tq = new TermQuery(new Term("all_entries", "y"));
> FilteredQuery fq = new FilteredQuery(tq, ft);
> FilteredQuery fq2 = new FilteredQuery(tq, ft2);
> q2.add(fq, false, false);
> q2.add(fq2, false, false);
>
> The two filters are searches over numeric ranges. I'm using filters so
> I don't get the TooManyBooleanClauses Exception. And my TermQuery tq
> is
> just a field that has 'y' in every document so I can filter over the
> entire index. The last two lines I am creating a boolean OR, and
> everything works fine. I get back 30 documents which is correct.
>
> However when I change the last two lines to create an AND:
>
> q2.add(fq, true, false);
> q2.add(fq2, true, false);
>
> I still get back 30 documents, which is not correct. It should be 0.
> What's going on with FilteredQuery?
>
> Thanks,
> Peter
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
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