ngroup for MLT results

[Zheng Lin Edwin Yeo]

Hi,

Would like to check, is there a way to do ngrouping for MLT queries?
I tried the following query with the MoreLikeThisHandler, but I could not
get any ngroup results.

http://localhost:8983/solr/collection1/mlt?q=testing&json.facet={ngroups:%22unique(signature)%22}&start=0

I can only get the ngroup results like this when I use the normal
SearchHandler

  "facets":{
    "count":15177209,
    "ngroups":9181621}}


Regards,
Edwin