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From lucene-...@jakarta.apache.org
Subject [Jakarta Lucene Wiki] Updated: SearchNumericalFields
Date Wed, 24 Nov 2004 22:55:37 GMT
   Date: 2004-11-24T14:55:36
   Editor: HossMan <hossman_lucene@fucit.org>
   Wiki: Jakarta Lucene Wiki
   Page: SearchNumericalFields
   URL: http://wiki.apache.org/jakarta-lucene/SearchNumericalFields

   no comment

Change Log:

------------------------------------------------------------------------------
@@ -22,6 +22,12 @@
 
        doc.add(Field.Keyword("id", Number''''''Utils.pad(i)));
 
+ == Consider Using a Filter ==
+
+ Building a Query that for a number (or a range of numbers) is just like building a Query
for a word -- it involves scoring based on the frequency of that word (or number) in the index
which isn't usually what people want.  So you may want to consider "Filtering" using the RangeFilter
class instead.  It can be a lot more efficient then using the RangeQuery class because it
can skip all of the score related issues.
+
+ http://nagoya.apache.org/eyebrowse/BrowseList?listName=lucene-user@jakarta.apache.org&by=thread&from=943115
+
  == Create a custom QueryParser subclass: ==
 
   public class Custom''''''Query''''''Parser extends Query''''''Parser {
@@ -52,7 +58,7 @@
 
   Note: Only the "id" field is treated special, but your logic may vary.
 
-  == Use the custom QueryParser ==
+  === Use the custom QueryParser ===
 
      Custom``Query''''''Parser parser =
          new Custom''''''Query``Parser("field", analyzer);
@@ -63,7 +69,7 @@
                             query.toString("field"));
 
 
-  == For decimals ==
+ == For decimals ==
 
   You can use a multiplier to make sure you don't have decimals if they cause problems.(comment
by sv)
 
@@ -121,7 +127,7 @@
  }
  }}}
  
- === Handling larger numbers ===
+ == Handling larger numbers ==
  
  The code for a class for handling all possible long values is here. http://www.mail-archive.com/lucene-dev@jakarta.apache.org/msg04790.html
  

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