If I search for q=!categoryid:3876021, solr correctly tells me there are two million plus hits.
If I search for q=mfrid:18678, solr tell me there are 50,314 hits I want to combine those two results, so I try q=!categoryid:3876021 OR mfrid:18678 I would have expected two million plus results, instead, I get 50,314. Is there a way to do a union of results from searching two different fields? Curiously, if I remove the ! I do get the union of the results. But I want all categories except that one, plus all mfr id I specified.
