Hi, I have been using collapsing in my application. I have a requirement of finding the no of groups matching some filter criteria. Something like a COUNT(DISTINCT columnName). The only solution I can currently think of is using the query:
q=*:*&rows=Integer.MAX_VALUE&start=0&fl=score&collapse.field=abc&collapse.threshold=1&collapse.type=normal I get the number of groups from 'numFound', but this seems like a bad solution in terms of performance. Is there a cleaner way? Thanks, Samarth
