elasticsearch/docs/reference/query-dsl/boosting-query.asciidoc

[[query-dsl-boosting-query]]
=== Boosting Query

The `boosting` query can be used to effectively demote results that
match a given query. Unlike the "NOT" clause in bool query, this still
selects documents that contain undesirable terms, but reduces their
overall score.

It accepts a `positive` query and a `negative` query.
Only documents that match the `positive` query will be included
in the results list, but documents that also match the `negative` query
will be downgraded by multiplying the original `_score` of the document
with the `negative_boost`.

[source,js]
--------------------------------------------------
GET /_search
{
    "query": {
        "boosting" : {
            "positive" : {
                "term" : {
                    "field1" : "value1"
                }
            },
            "negative" : {
                 "term" : {
                     "field2" : "value2"
                }
            },
            "negative_boost" : 0.2
        }
    }
}
--------------------------------------------------
// CONSOLE