KnowStreaming/km-persistence/src/main/resources/dsl/BaseMetricESDAO/getLatestMetricTime

{
    "_source": "timestamp",
	"size": 1,
	"query": {
		"bool": {
			"must": [
				{
					"range": {
						"timestamp": {
							"gte": %d,
                            "lte": %d
						}
					}
				}
				%s
			]
		}
	},
	"sort": [
	  {
	    "timestamp": {
	      "order": "desc"
	    }
	  }
	]
}