Good evening, I am using facet json api to query aggregation data, and I don't care about the returned documents themselves. One of the use cases I want to employ is tagging filter queries for fields, and then exclude those filters when faceting. My problem is, however, that in those cases where the filter has 0 matches, the facets aren't calculated at all.
I'm using dataset I found at https://www.raspberry.nl/2010/12/29/solr-test-dataset/ . To illustrate -- this is an an example when filter doesn't filter out everything (working as expected): Request: { "query": "*:*", "facet": { "latitude_f": { "type": "range", "start": -90, "facet": { "population": "sum(population_i)" }, "domain": { "excludeTags": "latitude_f" }, "gap": 10, "end": -70, "field": "latitude_f" } }, "limit": 0, "filter": [ "{!tag=latitude_f}latitude_f:[-80.0 TO -70.0]" ] } Response: { "facets": { "count": 1, "latitude_f": { "buckets": [ { "val": -90, "count": 0 }, { "val": -80, "count": 1, "population": 1258 } ] } } } Example when filter filters everything out: Request is the same, except the filter field value is "filter": [ "{!tag=latitude_f}latitude_f:[-90.0 TO -80.0]" ] and response is "facets":{ "count":0} . I'm returned no facets whatsoever. However I'd expect the response to be the same as and for the first request, since the only one filter is used, and is excluded in faceting. Is this a bug? What are the workarounds for such problem?
