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From Ian Lea <ian....@gmail.com>
Subject Re: Multiple sort field
Date Wed, 18 Jul 2012 08:34:45 GMT
> Any thoughts on this?

Patience ...

> Is it good to use multiple sort fields?

Absolutely, if that's what you need.  On the other hand, if you don't
need it then it's a bad idea.

> Using sort on docid will consume any memory?

Don't know.  Certainly won't use less than not sorting this way.

> Is there any other way out to acheive this.

If you could get a full timestamp you could index it as a NumericField
and sort on that.  Or you could add some value to the existing
timestamp to make each one unique.  Probably other ways too but that's
all I can think of right now.


--
Ian.


On Wed, Jul 18, 2012 at 6:34 AM, Ganesh <emailgane@yahoo.co.in> wrote:
> Any thoughts on this?
>
> Regards
> Ganesh
>
> ----- Original Message -----
> From: "Ganesh" <emailgane@yahoo.co.in>
> To: <java-user@lucene.apache.org>
> Sent: Tuesday, July 17, 2012 4:23 PM
> Subject: [Bulk] Multiple sort field
>
>
> Hello all,
>
> I have more than one record having same time stamp. When i sort by date time in decending
order, the set of records which have same time stamp are displayed in the order of insertion.
Basically it is displayed with asscending order of docid. But i want the reverse of that.
>
> Consider the below set of records.
> record_1  201207170101
> record_2  201207170101
> record_3  201207170102
> record_4  201207170102
>
> After search, it displays the results in below order
> record_3  201207170102
> record_4  201207170102
> record_1  201207170101
> record_2  201207170101
>
> But i want, sort on date time and again sort on docid in reverse order.
> record_4  201207170102
> record_3  201207170102
> record_2  201207170101
> record_1  201207170101
>
> Is it good to use multiple sort fields? Using sort on docid will consume any memory?
Is there any other way out to acheive this.
>
> Regards
> Ganesh
>
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