hi there,
I can't seem to find a way to collapse results on a filter query. For
example, imagine that I have a query with filter is_valid:true. Now, if I
want to collapse the results on another field than is_valid (i.e user_id),
neither of the following works:
fq=is_valid:true AND {!collapse field=user_id}
fq={!collapse field=user_id}is_valid:true
First one causes "Query does not implement createWeight" error and in the
result set of the second on, the scores are extremely high (in the millions)
which is far bigger than the scores of the documents in the non-collapsed
version of the query.
I am using solr6 without shards.
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