我有数据如下:
{"action":"CREATE","docs":1,"date":"2016 Jun 26 12:00:12","userid":"1234"}
{"action":"REPLACE","docs":2,"date":"2016 Jun 27 12:00:12","userid":"1234"}
{"action":"REPLACE","docs":1,"date":"2016 Jun 27 13:00:12","userid":"1234"}
{"action":"CREATE","docs":1,"date":"2016 Jun 28 12:00:12","userid":"3431"}
{"action":"REPLACE","docs":2,"date":"2016 Jun 28 13:00:12","userid":"3431"}
{"action":"CREATE","docs":1,"date":"2016 Jun 29 12:00:12","userid":"9999"}
为了按日期(降序)获取每个唯一用户订单的记录,我使用了“热门点击”,如下所示:
"aggs": {
"user_bucket": {
"terms": {
"field": "userid"
},
"aggs": {
"user_latest_count": {
"top_hits": {
"size": 1,
"sort": [
{
"data": {
"order": "desc"
}
}
],
"_source": {
"include": [
"docs"
]
}
}
}
}
}
}
上述查询结果如下:
{"action":"REPLACE","docs":1,"date":"2016 Jun 27 13:00:12","userid":"1234"}
{"action":"REPLACE","docs":2,"date":"2016 Jun 28 13:00:12","userid":"3431"}
{"action":"CREATE","docs":1,"date":"2016 Jun 29 12:00:12","userid":"9999"}
现在,我想进一步汇总,结果如下:
{"sum_of_different_buckets": 4}
但不知道如何SUM场 ”docs” 上面获得的结果的值。