A POC will tell you - it is 90% driven by your particular environment, your
particular schema, your particular data, and your particular queries (e.g.,
how many documents they match, how many days they match.)
But please do share with us your results after conducting your POC - which
is an absolute requirement for all particular changes to how an app uses
Solr.
-- Jack Krupansky
-----Original Message-----
From: Amit Nithian
Sent: Friday, November 30, 2012 12:04 AM
To: solr-user@lucene.apache.org
Subject: Re: Grouping by a date field
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
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