lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From bugzi...@apache.org
Subject DO NOT REPLY [Bug 34279] New: - Combining FilteredQueries in a BooleanQuery doesn't work
Date Sun, 03 Apr 2005 21:05:35 GMT
DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG·
RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT
<http://issues.apache.org/bugzilla/show_bug.cgi?id=34279>.
ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND·
INSERTED IN THE BUG DATABASE.

http://issues.apache.org/bugzilla/show_bug.cgi?id=34279

           Summary: Combining FilteredQueries in a BooleanQuery doesn't work
           Product: Lucene
           Version: unspecified
          Platform: Other
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Search
        AssignedTo: lucene-dev@jakarta.apache.org
        ReportedBy: hossman_apachebugz@fucit.org


from java-user@lucene ...

: > From: Kipping, Peter
: > Sent: Friday, March 25, 2005 10:34 AM
: > To: java-user
: > 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?


Date: Fri, 1 Apr 2005 16:52:55 -0800 (PST)
From: Chris Hostetter
To: java-user
Subject: Re: FilteredQuery and Boolean AND

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

-------------------------------

I'll attach the testcase momentarily

-- 
Configure bugmail: http://issues.apache.org/bugzilla/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

---------------------------------------------------------------------
To unsubscribe, e-mail: java-dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-dev-help@lucene.apache.org


Mime
View raw message