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+[[query-dsl-constant-score-query]]
+=== Constant Score Query
+
+A query that wraps a filter or another query and simply returns a
+constant score equal to the query boost for every document in the
+filter. Maps to Lucene `ConstantScoreQuery`.
+
+[source,js]
+--------------------------------------------------
+{
+    "constant_score" : {
+        "filter" : {
+            "term" : { "user" : "kimchy"}
+        },
+        "boost" : 1.2
+    }
+}
+--------------------------------------------------
+
+The filter object can hold only filter elements, not queries. Filters
+can be much faster compared to queries since they don't perform any
+scoring, especially when they are cached.
+
+A query can also be wrapped in a `constant_score` query:
+
+[source,js]
+--------------------------------------------------
+{
+    "constant_score" : {
+        "query" : {
+            "term" : { "user" : "kimchy"}
+        },
+        "boost" : 1.2
+    }
+}
+--------------------------------------------------