GroupBy Parameter (Select-JSON Cmdlet)
A comma-separated list of columns that the result set will be grouped by.
Syntax
Select-JSON -GroupBy string
Remarks
The comma-separated list of columns to aggregate the values of and execute a summary function over. Specify the summary function in the Columns parameter with the same syntax you would use for an SQL statement. For example:
Select-JSON -Connection $conn -Table NorthwindOData -Columns @("personal.name.last","SUM(AnnualRevenue)") -GroupBy "personal.name.last" -Where "personal.name.last = '[email protected]'"