facets.json

curl -XGET 'http://127.0.0.1:9200/events/event/_search?pretty=1'  -d '
{
   "query" : {
      "nested" : {
         "filter" : {
            "bool" : {
               "must" : [
                  {
                     "term" : {
                        "tags.type" : "company"
                     }
                  },
                  {
                     "term" : {
                        "tags.value" : "Google"
                     }
                  }
               ]
            }
         },
         "path" : "tags"
      }
   },
   "facets" : {
      "speaker" : {
         "terms_stats" : {
            "order" : "total",
            "key_field" : "value",
            "value_field" : "weight"
         },
         "facet_filter" : {
            "term" : {
               "tags.type" : "speaker"
            }
         },
         "nested" : "tags"
      },
      "place" : {
         "terms_stats" : {
            "order" : "total",
            "key_field" : "value",
            "value_field" : "weight"
         },
         "facet_filter" : {
            "term" : {
               "tags.type" : "place"
            }
         },
         "nested" : "tags"
      },
      "company" : {
         "terms_stats" : {
            "order" : "total",
            "key_field" : "value",
            "value_field" : "weight"
         },
         "facet_filter" : {
            "term" : {
               "tags.type" : "company"
            }
         },
         "nested" : "tags"
      }
   }
}
'

# [Thu Mar 21 19:17:26 2013] Response:
# {
#    "hits" : {
#       "hits" : [
#          {
#             "_source" : {
#                "title" : "Paris in the springtime",
#                "tags" : [
#                   {
#                      "value" : "Paris",
#                      "weight" : 10,
#                      "type" : "place"
#                   },
#                   {
#                      "value" : "Eric Schmidt",
#                      "weight" : 100,
#                      "type" : "speaker"
#                   },
#                   {
#                      "value" : "Google",
#                      "weight" : 50,
#                      "type" : "company"
#                   }
#                ]
#             },
#             "_score" : 1,
#             "_index" : "events",
#             "_id" : "q8iOOADTTNSkapd5_zuUuA",
#             "_type" : "event"
#          }
#       ],
#       "max_score" : 1,
#       "total" : 1
#    },
#    "timed_out" : false,
#    "_shards" : {
#       "failed" : 0,
#       "successful" : 5,
#       "total" : 5
#    },
#    "facets" : {
#       "speaker" : {
#          "terms" : [
#             {
#                "count" : 1,
#                "min" : 100,
#                "max" : 100,
#                "mean" : 100,
#                "total" : 100,
#                "total_count" : 1,
#                "term" : "Eric Schmidt"
#             }
#          ],
#          "missing" : 0,
#          "_type" : "terms_stats"
#       },
#       "place" : {
#          "terms" : [
#             {
#                "count" : 1,
#                "min" : 10,
#                "max" : 10,
#                "mean" : 10,
#                "total" : 10,
#                "total_count" : 1,
#                "term" : "Paris"
#             }
#          ],
#          "missing" : 0,
#          "_type" : "terms_stats"
#       },
#       "company" : {
#          "terms" : [
#             {
#                "count" : 1,
#                "min" : 50,
#                "max" : 50,
#                "mean" : 50,
#                "total" : 50,
#                "total_count" : 1,
#                "term" : "Google"
#             }
#          ],
#          "missing" : 0,
#          "_type" : "terms_stats"
#       }
#    },
#    "took" : 4
# }