[[query-dsl-match-all-query]]
== Match All Query

The most simple query, which matches all documents, giving them all a `_score`
of `1.0`.

[source,js]
--------------------------------------------------
{ "match_all": {} }
--------------------------------------------------

The `_score` can be changed with the `boost` parameter:

[source,js]
--------------------------------------------------
{ "match_all": { "boost" : 1.2 }}
--------------------------------------------------

[[query-dsl-match-none-query]]
[float]
== Match None Query

This is the inverse of the `match_all` query, which matches no documents.

[source,js]
--------------------------------------------------
{ "match_none": {} }
--------------------------------------------------