Thanks. But i'm indexing number strings like phone numbers and card numbers, all kinds of search are possible. And fortunately my application is not strict on fast response. A search in several seconds is acceptable :-)
2009/11/9 Uwe Schindler <u...@thetaphi.de>: > If you *only* want to do wildcard queries on that field with a * in front, I > would suggest to reverse the string so the query uses the * at the end. > Wildcards at the beginning are very slow, because every term from this field > has to be enumerated. If the wildcard is at the end, because you made all > strings backwards during indexing it gets thousands of times faster. > > ----- > Uwe Schindler > H.-H.-Meier-Allee 63, D-28213 Bremen > http://www.thetaphi.de > eMail: u...@thetaphi.de > >> -----Original Message----- >> From: Wenbo Zhao [mailto:zha...@gmail.com] >> Sent: Monday, November 09, 2009 7:21 AM >> To: java-user@lucene.apache.org >> Subject: Re: how to match a term within digital strings? >> >> Thanks a lot. I'm such a fool >> >> BTW, where can I find better doc other than javadoc ? >> Or how do you get into lucene docs ? I'm really a little crazy >> reading javadoc, all concepts are split into fragments. >> >> >> 2009/11/9 AHMET ARSLAN <iori...@yahoo.com>: >> >> Hi all, >> >> I want to query part of a digital string: >> >> say indexed token is "123456789" >> >> I want to query 56789 to match this token >> >> The "Query Parser Syntax" says wildcard search can not >> >> be the first char. So "*56789" is not allowed >> >> How can I do that ? >> >> Thanks. >> > >> > With org.apache.lucene.queryParser.QueryParser's >> > >> > void setAllowLeadingWildcard(boolean allowLeadingWildcard) >> > Set to true to allow leading wildcard characters. >> > >> > method. >> > >> > __________________________________________________ >> > Do You Yahoo!? >> > Tired of spam? Yahoo! Mail has the best spam protection around >> > http://mail.yahoo.com >> > >> > --------------------------------------------------------------------- >> > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> > For additional commands, e-mail: java-user-h...@lucene.apache.org >> > >> > >> >> >> >> -- >> >> Best Regards, >> ZHAO, Wenbo >> >> ======================= >> >> --------------------------------------------------------------------- >> 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 > > -- Best Regards, ZHAO, Wenbo ======================= --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
