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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
}
}
--------------------------------------------------
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