I tried NumericField with Integer value and Long value. There is no difference in space and heap utilization. Will it be? Are both are same?
Regards Ganesh ----- Original Message ----- From: "Uwe Schindler" <u...@thetaphi.de> To: <java-user@lucene.apache.org> Sent: Tuesday, February 28, 2012 3:52 PM Subject: [Bulk] RE: Date time as String or Numeric field > Hi, > > NumericField takes more space on disk and (possibly more heap because term > dictionary is larger), but is much faster on RANGE searches > (NumericRangeQuery). Depending on index size this can be hundreds of times > faster. > > If you don't want to do numeric searches (like range from...to) but only > sort against the numeric field, use precisionStep=Integer.MAX_VALUE, then it > takes even less space on disk or heap. The additional disk space is needed > for optimizing range searches (which is wanted in most cases). If you use > the infinite precision step, each numeric value only generates one token, > but search with NumericRangeQuery is then as slow as a TermRangeQuery. > > Uwe > > ----- > Uwe Schindler > H.-H.-Meier-Allee 63, D-28213 Bremen > http://www.thetaphi.de > eMail: u...@thetaphi.de > > >> -----Original Message----- >> From: Ganesh [mailto:emailg...@yahoo.co.in] >> Sent: Tuesday, February 28, 2012 11:15 AM >> To: java-user@lucene.apache.org >> Subject: Date time as String or Numeric field >> >> Hello all, >> >> I was using DateTime as String and now i am using NumericField. Using >> NumericField takes more heap and storage space then the earlier String >> version. Is it good to move to NumericField or stick with String. I am > using this >> field for search and sort. >> >> Regards >> Ganesh >> >> --------------------------------------------------------------------- >> 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 > --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
