Elasticsearch API cheatsheet

es_cheatseet.json

# find documents which don't contain field 'non_existing_field'
POST /twitter/tweet/_search
{
    "query": {
        "bool": {
            "must": {
                "match_all": {}
            }, 
            "must_not": {
               "prefix": {
                  "non_existing_field": ""
               }
           }
        }
    }
}


# get all terms stored in field 'content'
POST /twitter/tweet/_search
{
    "query" : {
        "query_string" : {
            "query": "xyz"
        }
    },
    "script_fields": {
        "terms" : {
            "script": "doc[field].values",
            "params": {
                "field": "content"
            }
        }

    }
}