{
    "properties" : {
        "event" : {
            "properties" : {
                "category" : {
                    "type" : "keyword"
                }
            }
        },
        "@timestamp" : {
            "type" : "date"
        },
        "processes" : {
            "type" : "nested",
            "properties" : {
                "pid" : {
                    "type" : "long"
                },
                "path" : {
                    "type" : "text",
                    "fields" : {
                        "keyword" : {
                            "type" : "keyword"
                        }
                    }
                }
            }
        },
        "long_field" : {
            "type" : "long"
        }
    }
}