去重查詢
去重查詢user_id
GET comment_douyin/_search
{
"size":0,
"query": {
"match_all": {}
},
"aggs": {
"NAME": {
"cardinality": {
"field": "user_id"
}
}
}
}
{
"took" : 8344,
"timed_out" : false,
"_shards" : {
"total" : 288,
"successful" : 288,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 10000,
"relation" : "gte"
},
"max_score" : null,
"hits" : [ ]
},
"aggregations" : {
"NAME" : {
"value" : 149332655 返回結(jié)果
}
}
}
