What's the performance impact of doing this?

On Thu, Nov 29, 2012 at 7:54 PM, Jack Krupansky <j...@basetechnology.com>wrote:

> Or group by a function query which is the date field converted to
> milliseconds divided by the number of milliseconds in a day.
>
> Such as:
>
>  q=*:*&group=true&group.func=**rint(div(ms(date_dt),mul(24,**
> mul(60,mul(60,1000)))))
>
> -- Jack Krupansky
>
> -----Original Message----- From: Amit Nithian
> Sent: Thursday, November 29, 2012 10:29 PM
> To: solr-user@lucene.apache.org
> Subject: Re: Grouping by a date field
>
>
> Why not create a new field that just contains the day component? Then you
> can group by this field.
>
>
> On Thu, Nov 29, 2012 at 12:38 PM, sdanzig <sdan...@gmail.com> wrote:
>
>  I'm trying to create a SOLR query that groups/field collapses by date.  I
>> have a field in YYYY-MM-dd'T'HH:mm:ss'Z' format, "datetime", and I'm
>> looking
>> to group by just per day.  When grouping on this field using
>> group.field=datetime in the query, SOLR responds with a group for every
>> second.  I'm able to easily use this field to create day-based facets, but
>> not groups.  Advice please?
>>
>> - Scott
>>
>>
>>
>> --
>> View this message in context:
>> http://lucene.472066.n3.**nabble.com/Grouping-by-a-date-**
>> field-tp4023318.html<http://lucene.472066.n3.nabble.com/Grouping-by-a-date-field-tp4023318.html>
>> Sent from the Solr - User mailing list archive at Nabble.com.
>>
>>
>

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