问题
Question: I am trying SQL query as the image showed below,I want it to be grouped by the same timestamp
expected output:
[
{
"tag1": {
"TagName": "PV1-input-power-L(10W)",
"Value": 0
},
"tag2": {
"TagName": "Sunshine-Display-Value",
"Value": 0
},
"tag3": {
"TagName": "TotalEnergy-(100kWh)_1",
"Value": 0
},
"timestamp": "2020-03-27T02:40:18Z"
}
]
sample document:
回答1:
You can use User Defined Functions.
Here is the data from my containers
Here is the function I have created. I named it CustomArray.
function userDefinedFunction(input){
var obj={};
input.forEach(function(element,index){
obj["tag"+index] = {
TagName :element.TagName,
Value: element.Value
};
}); return obj;}
Here, I run the UDF with my select statement
It returns the following data.
Schema is very close to what you are looking for. I think you can make it better by changing some jscript in UDF. I hope this helps!
来源:https://stackoverflow.com/questions/61055417/group-data-by-same-timestamp-using-cosmos-db-sql