I've had this problem too, although never come up with a good solution.
I've wondered, is there any clever way to use the highlighter to
accomplish tasks like this, or is that more trouble than any help it'll
get you?
Jonathan
On 7/21/2011 5:27 PM, Yonik Seeley wrote:
On Thu, Jul 21, 2011 at 4:47 PM, Olson, Ron<rol...@lbpc.com> wrote:
Is there an easy way to find out which field matched a term in an OR query using Solr? I have a
document with names in two multi-valued fields and I am searching for "Smith", using the
query "A_NAMES:smith OR B_NAMES:smith". I figure I could loop through both result arrays,
but that seems weird to me to have to search again for the value in a result.
That's pretty much the way lucene currently works - you don't know
what fields match a query.
If the query is simple, looping over the returned stored fields is
probably your best bet.
There are a couple other tricks you could use (although they are not
necessarily better):
1) with grouping by query (a trunk feature) you can essentially return
both queries with one request:
q=*:*&group=true&group.query=A_NAMES:smith&group.query=B_NAMES:smith
and optionally add a "group.query=A_NAMES:smith OR B_NAMES:smith" if
you need the combined list
2) use pseudo-fields (also trunk) in conjunction with the termfreq
function (the number of times a term appears in a field). This
obviously only works with term queries.
fl=*,count1:termfreq(A_NAMES,'smith'),count2:termfreq(B_NAMES,'smith')
You can use parameter substitution to pull out the actual term and
simplify the query:
fl=*,count1:termfreq(A_NAMES,$term),count2:termfreq(B_NAMES,$term)&term=smith
-Yonik
http://www.lucidimagination.com
