On Mar 2, 2009, at 10:01 AM, gistol...@gmx.de wrote:
I'm using the facet.date function to get all matching docs per day:
q
=
foo
&rows
=
0
&facet
=
true
&facet
.date
=
date
&facet
.date
.start
=
2009
-01-31T00:00:00Z&facet.date.end=2009-03-01T23:59:59Z&facet.date.gap=
+1DAY&fq=+size:big
2009-01-31T00:00:00Z -> 13 hits
2009-02-01T00:00:00Z -> 10 hits
...
As you see, the result is filtered by the "fq" parameter. The
downside for this solution is that I have to run the query for every
value from field "size" (big, small, ...). Is there an easier way to
produce the following result with a single query only?
big -> 2009-01-31T00:00:00Z -> 13 hits
big -> 2009-02-01T00:00:00Z -> 10 hits
...
small -> 2009-01-31T00:00:00Z -> 1 hits
small -> 2009-02-01T00:00:00Z -> 7 hits
...
There is a "tree" faceting component out there that I created still in
JIRA: http://issues.apache.org/jira/browse/SOLR-792
It works with field faceting (not dates or queries) currently, but is
along the lines of what you're after. It'd be great to flesh it out
to support date ranges and queries. Under the covers it does just
what you're doing from a client, but via a single request (but it can
short circuit a little if the top-level facet has no documents).
Erik
