Sorry, but Solr pivot faceting is based solely on "field" facets, not
"range" (or "date") facets.
You can approximate date gaps by making a copy of your raw date field and
then manually "gap" (truncate) the date values so that the their discrete
values correspond to your date gap.
You can do that with an update processor, or do it before you send the data
to Solr.
In the next release of my book I have a script for a
StatelessScriptUpdateProccessor (with examples) that supports truncation of
dates to a desired resolution, copying or modifying the input date as
desired.
-- Jack Krupansky
-----Original Message-----
From: Dotan Cohen
Sent: Sunday, June 30, 2013 5:51 AM
To: solr-user@lucene.apache.org
Subject: No date.gap on pivoted facets
Consider the following query:
select?q=*:*
&facet=true
&facet.date=added
&facet.date.start=2013-04-01T00:00:00Z
&facet.date.end=2013-06-30T00:00:00Z
&facet.date.gap=%2b7DAYS
&rows=0
&facet.pivot=added,provider
In this query, the facet.date.gap is ignored and each individual
second in faceted on. The issue remains the same even when reversing
the order of the pivot:
&facet.pivot=provider,added
Is this a Solr bug, or am I pivoting wrong? This is on Solr 4.1.0
running on OpenJDK 64-Bit Server VM (build 20.0-b12, mixed mode) on
Ubuntu Server 12.04. Thank you!
--
Dotan Cohen
http://gibberish.co.il
http://what-is-what.com
