: but am stuck with syntax with does not allow any concatenation of params to : a prefix.
there's no inherent support for anything like that in the local param parsing that would help you in building up facet params like this. you'd either need to do this in some layer betwen your client and solr, or you'd need to write a custom SearchComponent that solr could run which would look for your custom params and then populate the request with the final "facet.field" names you want. If you are comfortable with writing java code, that would be fairly simple to do. -Hoss http://www.lucidworks.com/
