之前全部的排序都是按照每个bucket的doc_count降序来排的,那么如何自定义排序呢
自定义排序
需求: 按每种颜色的平均销售额降序排序1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21GET /tvs/sales/_search
{
"size": 0,
"aggs": {
"group_by_color": {
"terms": {
"field": "color",
"order": {
"avg_price": "desc"
}
},
"aggs": {
"avg_price": {
"avg": {
"field": "price"
}
}
}
}
}
}
返回值:1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43{
"took": 2,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"failed": 0
},
"hits": {
"total": 8,
"max_score": 0,
"hits": []
},
"aggregations": {
"group_by_color": {
"doc_count_error_upper_bound": 0,
"sum_other_doc_count": 0,
"buckets": [
{
"key": "红色",
"doc_count": 4,
"avg_price": {
"value": 3250
}
},
{
"key": "绿色",
"doc_count": 2,
"avg_price": {
"value": 2100
}
},
{
"key": "蓝色",
"doc_count": 2,
"avg_price": {
"value": 2000
}
}
]
}
}
}
已经是按照请求中指定的avg_price降序排列的了
下钻分析时,深层的metric排序
需求: 颜色 + 品牌下钻分析,按最深层的metric排序
1 | GET /tvs/sales/_search |
返回值:1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94{
"took": 1,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"failed": 0
},
"hits": {
"total": 8,
"max_score": 0,
"hits": []
},
"aggregations": {
"group_by_color": {
"doc_count_error_upper_bound": 0,
"sum_other_doc_count": 0,
"buckets": [
{
"key": "红色",
"doc_count": 4,
"group_by_brand": {
"doc_count_error_upper_bound": 0,
"sum_other_doc_count": 0,
"buckets": [
{
"key": "三星",
"doc_count": 1,
"avg_price": {
"value": 8000
}
},
{
"key": "长虹",
"doc_count": 3,
"avg_price": {
"value": 1666.6666666666667
}
}
]
}
},
{
"key": "绿色",
"doc_count": 2,
"group_by_brand": {
"doc_count_error_upper_bound": 0,
"sum_other_doc_count": 0,
"buckets": [
{
"key": "小米",
"doc_count": 1,
"avg_price": {
"value": 3000
}
},
{
"key": "TCL",
"doc_count": 1,
"avg_price": {
"value": 1200
}
}
]
}
},
{
"key": "蓝色",
"doc_count": 2,
"group_by_brand": {
"doc_count_error_upper_bound": 0,
"sum_other_doc_count": 0,
"buckets": [
{
"key": "小米",
"doc_count": 1,
"avg_price": {
"value": 2500
}
},
{
"key": "TCL",
"doc_count": 1,
"avg_price": {
"value": 1500
}
}
]
}
}
]
}
}
}
看下请求和返回值,请求中,排序是加到了下面一层group_by_brand中, 然后搜索结果中,也是group_by_brand下面的bucket按照我们指定的字段排序了,在上层的group_by_color中,还是按照doc_count去排序的