Match All Query | Elasticsearch Reference [5.0]

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Match All Queryedit

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

GET /_search
{
    "query": {
        "match_all": {}
    }
}

The _score can be changed with the boost parameter:

GET /_search
{
    "query": {
        "match_all": { "boost" : 1.2 }
    }
}

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

GET /_search
{
    "query": {
        "match_none": {}
    }
}