lucene-java-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Rasik Pandey <rbpan...@gmail.com>
Subject Re: sorting on "dates" a little fuzzy...
Date Fri, 22 Apr 2005 20:02:00 GMT
Hi James,

Have a look in Bugzilla at issue #34563. I contributed some code last
night that may be helpful to you. Have a look at the
patchTestSort.txt, which is a diff of my changes to test the classes I
created. This may help you understand how to use the classes, but I
assume based upon the value you are storing in the index you may only
need the LongSortComparator.java which I attached to that Bugzilla
issue.

Regards,
Rus

On 4/22/05, James <ajd_765@yahoo.com> wrote:
> 
> Hi Erik,
> 
> Thanks for the reply.  All dateTime fields are zero-padded and the
> same length, and each indexed document has a valid dateTime value.
> 
> Regarding the sort type, INT generates a ParseException, I assume
> because the string has too many digits to fit in an int.  I looked
> for a LONG type but couldn't find one.  So string was the next logical
> choice.
> 
> Regards,
> James
> 
> --- Erik Hatcher <erik@ehatchersolutions.com> wrote:
> >
> > On Apr 21, 2005, at 5:22 PM, James Levine wrote:
> >
> > > I have an index of around 3 million records, and typical queries
> > > can result in result sets of between 1 and 400,000 results.
> > >
> > > We have indexed "dateTime" fields in the form 20050415142, that is, to
> > > 10-minute precision.
> > >
> > > When I try to sort queries I get something back that is roughly sorted
> > > on index, but not quite. Stuff is out of order just a bit. The
> > > size of the result set does not seem to be related occurance of
> > > this problem.
> > >
> > > We've tried lucene 1.4-final and1.4.3.
> > >
> > > my code looks like this
> > >
> > > s = new Sort( new SortField[] { new SortField( "dateTime",
> > > SortField.STRING,
> > > true ), SortField.FIELD_SCORE } );
> > >
> > > ...
> > >
> > > hits = searcher.search( qry, s );
> > >
> > >
> > > Any help is appreciated, I'm so far baffled by this problem.
> >
> > I don't have a solution, but rather some questions to check.... are all
> > dateTime's the same width, zero padded on the right?  Does every
> > document have a dateTime field?
> >
> > I recommend you sort with type INT instead of STRING if it fits, or
> > maybe LONG.  STRING will use the most resources for sorting.
> >
> >       Erik
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > For additional commands, e-mail: java-user-help@lucene.apache.org
> >
> >
> 
> __________________________________________________
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
> 
>

---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-user-help@lucene.apache.org


Mime
View raw message