The result type is a "number" which can be either integer or floating point.
Notes
Nulls are ignored by this function.
If a row is empty or consists only of nulls, the result is NULL.
e.g. time period 1628894760000, in the example contains a null.
Example
Data
1
[
2
{
3
"serverIp":"10.0.0.1",
4
"time":1628894700000,
5
"cpuUsage":52.3
6
},
7
{
8
"serverIp":"10.0.0.1",
9
"time":1628894760000,
10
"cpuUsage":2.4
11
},
12
{
13
"serverIp":"10.0.0.1",
14
"time":1628894820000,
15
"cpuUsage":99.3
16
},
17
{
18
"serverIp":"10.0.0.1",
19
"time":1628894880000,
20
"cpuUsage":99.6
21
},
22
{
23
"serverIp":"10.0.0.1",
24
"time":1628894940000,
25
"cpuUsage":12.3
26
},
27
{
28
"serverIp":"10.0.0.1",
29
"time":1628895000000,
30
"cpuUsage":55
31
},
32
{
33
"serverIp":"10.0.0.2",
34
"time":1628894700000,
35
"cpuUsage":2.3
36
},
37
{
38
"serverIp":"10.0.0.2",
39
"time":1628894760000
40
},
41
{
42
"serverIp":"10.0.0.2",
43
"time":1628894820000,
44
"cpuUsage":9.3
45
},
46
{
47
"serverIp":"10.0.0.2",
48
"time":1628894880000,
49
"cpuUsage":9.6
50
},
51
{
52
"serverIp":"10.0.0.2",
53
"time":1628894940000,
54
"cpuUsage":2.3
55
}
56
]
Copied!
Query:
Find the average cpuUsage in each DATE_TIME period: