Transforming a list of objects into a table in Kusto - azure-data-explorer

Question

I am trying to get the json data (in form of a list of key-value pairs) in one of my data table cells and convert that into a dynamic table of sorts.
T
| where id == "xyz"
| project telem_obj
The data in the telem_obj cell is of the format
[
{
"Value": "SomeKey01",
"Key": "0"
},
{
"Value": "SomeKey02",
"Key": "1"
}
]
My end objective is to get a table of the form;
|Key | Value |
|SomeValue01 | 0 |
|SomeValue02 | 1 |
I have managed to do this by taking out the static data and creating atable out of it.
print EnumVals = dynamic(
[
{
"Value": "SomeKey01",
"Key": "0"
},
{
"Value": "SomeKey02",
"Key": "1"
}
]
)
| mvexpand EnumVals
| evaluate bag_unpack(EnumVals)
I am not sure how can I go about taking result of my query, extracting this list of json objects from it and convert it into a new dynamic table. I cannot find any example which works on a list of objects.

Answer 1

After a good night's sleep, i found how to do it
T
| take 1
| mvexpand telem_obj
| evaluate bag_unpack(telem_obj)
| project Value, Key
my mistake was I was trying to force the actual query inside a dynamic function.
print EnumVals = dynamic(
T
| where id == "xyz"
| project telem_obj
)
| mvexpand EnumVals
| evaluate bag_unpack(EnumVals)