Nuno Leitao wrote:
Hi,
I have a 1.3 Solr with the field collapsing patch (SOLR-236 -
http://issues.apache.org/jira/browse/SOLR-236).
Collapsing works great, but only using the dismax and standard query
handler - I haven't managed to get it to work using the MoreLikeThis
handler though - I am going for a simplistic approach where I just run a
query such as:
/mlt?start=0&rows=3&collapse.field=collapsefield&collapse.type=normal
Looking at the SOLR-236 patch it seems the field collapsing has only
been patched into the StandardRequestHandler and the
DisMaxRequestHandler, which would explain why this fails to work
completely, but perhaps someone has found another way ?
I have not tried, but field collapsing should be able to work with the
MoreLikeThis handler -- but it is not part of the patch.
Given that we keep trying to add more widgets to the search chain, there
has been talk of "search component" based handler that can easily share
this sort of functionality.
check:
https://issues.apache.org/jira/browse/SOLR-281
http://www.nabble.com/search-components-%28plugins%29-tf3898040.html#a11050274
SOLR-281 is now just a quick/dirty brainstorm, but I think it is the
likely direction for how field collapsing will be integrated.
In short, if you need something to work quickly: apply the same pattern
from DisMax and Standard to the MoreLikeThis handler. If you have more
time (and interest) it would be great to add these features to SOLR-281.
ryan
