Ops.. I just re-read the email. I just need to query based on the precise id (exactly the unique int id). You mean I can just to a "entryId.ToString()"? instead of using: NumericUtils.IntToPrefixCoded(int val)
Thx Simo On Tue, Jan 12, 2010 at 6:49 PM, Michael Garski <[email protected]>wrote: > It depends on your use case... if you only need to query for single > items such as the unique integer id in a field then a standard field can > be used. If you need to query for numeric ranges, then a numeric field > is the best choice due to performance. > > If you need to do both, numeric fields are the way to go but there is an > extra step to query for items with a specific value. You'll need to use > the Lucene.Net.Utils.NumericUtils methods to convert the number to the > prefix coded value in the index that is then used as the string value of > the search. > > NumericUtils.IntToPrefixCoded(int val) > NumericUtils.LongToPrefixCoded(long val) > NumericUtils.FloatToPrefixCoded(float val) > NumericUtils.DoubleToPrefixCoded(double val) > > Michael > > > > -----Original Message----- > From: Simone Chiaretta [mailto:[email protected]] > Sent: Tuesday, January 12, 2010 7:38 AM > To: lucene-net-user > Subject: How to search for a specific number on Lucene 2.9.1 > > Hello, > I see that when indexing an integer, when moving from Lucene 2.3 to > 2.9.1 I > get a obsolete warning for the NumericTools. > I changed it to a NumericField but now how do I query it for an exact > number? > Do I use the NumericRangeQuery with min and max set to the same number? > or > is there a better way to do exact queries? > Simone > > -- > Simone Chiaretta > Microsoft MVP ASP.NET - ASPInsider > Blog: http://codeclimber.net.nz > RSS: http://feeds2.feedburner.com/codeclimber > twitter: @simonech > > Any sufficiently advanced technology is indistinguishable from magic > "Life is short, play hard" > > -- Simone Chiaretta Microsoft MVP ASP.NET - ASPInsider Blog: http://codeclimber.net.nz RSS: http://feeds2.feedburner.com/codeclimber twitter: @simonech Any sufficiently advanced technology is indistinguishable from magic "Life is short, play hard"
