I opened an issue to *maybe* store the precision step in index metadata, but this is similar like using a different analyzer on query and index side: https://issues.apache.org/jira/browse/LUCENE-3187
----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen http://www.thetaphi.de eMail: u...@thetaphi.de > -----Original Message----- > From: Uwe Schindler [mailto:u...@thetaphi.de] > Sent: Thursday, June 09, 2011 11:32 AM > To: java-user@lucene.apache.org > Subject: RE: Multi value NumericFields - major issue > > Hi, > > if you pass in a precisionStep != theDefault (which is 4), you also have to pass > the same precStep also into the NumericRangeQuery / NumericRangeFilter. > If you not do this, you may get too few / incorrect results. This is explained in > JavaDocs of NumericRangeQuery. You example does not do this. > > Uwe > > ----- > Uwe Schindler > H.-H.-Meier-Allee 63, D-28213 Bremen > http://www.thetaphi.de > eMail: u...@thetaphi.de > > > > -----Original Message----- > > From: Tarr, Gregory [mailto:gregory.t...@detica.com] > > Sent: Thursday, June 09, 2011 11:26 AM > > To: java-user@lucene.apache.org > > Subject: Multi value NumericFields - major issue > > > > The javadocs for NumericField (lucene 2.9.4) state: > > > > You may add the same field name as a NumericField to the same document > > more than once. Range querying and filtering will be the logical OR of > > all values; so a range query will hit all documents that have at least > > one > value in > > the range > > > > Furthermore, the precisionStep is defined only in terms of performance > > and disk space, not in terms of affecting the results. > > > > However, the unit test below shows that the precisionStep directly > > affects the results when using multi-value fields: > > > > Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_29); > > RAMDirectory directory = new RAMDirectory(); IndexWriter writer = new > > IndexWriter(directory, analyzer, true, > > IndexWriter.MaxFieldLength.UNLIMITED); > > Document document = new Document(); > > document.add(new NumericField("number", 4, Field.Store.YES, > > true).setLongValue(480)); document.add(new NumericField("number", 4, > > Field.Store.YES, true).setLongValue(180)); > > writer.addDocument(document); IndexSearcher searcher = new > > IndexSearcher(directory, true); Query q = new FilteredQuery(new > > MatchAllDocsQuery(), NumericRangeFilter.newLongRange("number", 444l, > > 10000l, true, true)); TopDocs docs = searcher.search(q, null, 10); > > Assert.assertEquals(1, docs.totalHits); > > > > analyzer = new StandardAnalyzer(Version.LUCENE_29); > > directory = new RAMDirectory(); > > writer = new IndexWriter(directory, analyzer, true, > > IndexWriter.MaxFieldLength.UNLIMITED); > > document = new Document(); > > document.add(new NumericField("number", 6, Field.Store.YES, > > true).setLongValue(480)); document.add(new NumericField("number", 6, > > Field.Store.YES, true).setLongValue(180)); > > writer.addDocument(document); searcher = new IndexSearcher(directory, > > true); q = new FilteredQuery(new MatchAllDocsQuery(), > > NumericRangeFilter.newLongRange("number", 444l, 10000l, true, true)); > > docs = searcher.search(q, null, 10); > Assert.assertEquals(1, > > docs.totalHits); // fails, due to increased precision Step > > > > Any help would be greatly appreciated > > > > Greg > > > > Please consider the environment before printing this email. > > > > This message should be regarded as confidential. If you have received > > this email in error please notify the sender and destroy it immediately. > > > > Statements of intent shall only become binding when confirmed in hard > > copy by an authorised signatory. The contents of this email may > > relate to > dealings > > with other companies under the control of Detica Limited, details of > > which can be found at http://www.detica.com/statutory-information. > > > > Detica Limited is registered in England under No: 1337451. > > Registered offices: Surrey Research Park, Guildford, Surrey, GU2 7YP, > > England. > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
