KQL result request to variable

Question

I would to save the result of request in a variable for use in a new request. But in Azure Reousrce Graph Explorer, I have an error of the syntax, but for me it's the same of the sample. Do you have an idea?

let test = policyresources | where type == "microsoft.authorization/policyassignments";

Result: Please provide below info when asking for support: timestamp = 2022-12-27T13:41:41.4506140Z, correlationId = 9b1b87fd-27d1-4fe1-9d80-8245ce6d5802. (Code:BadRequest)

Details: Query is invalid. Please refer to the documentation for the Azure Resource Graph service and fix the error before retrying. (Code:InvalidQuery) ParserFailure (Code:ParserFailure) ParserFailure (Code:ParserFailure) More information on the error can be found here.

https://learn.microsoft.com/fr-fr/azure/data-explorer/kusto/query/letstatement

I tested my request, I tested a simple command: let n = 10;

Result: Please provide below info when asking for support: timestamp = 2022-12-27T13:46:19.0224166Z, correlationId = 665c2ca7-5568-4afd-bb72-9d2126e60544. (Code:BadRequest)

Details: Query is invalid. Please refer to the documentation for the Azure Resource Graph service and fix the error before retrying. (Code:InvalidQuery) ParserFailure (Code:ParserFailure) ParserFailure (Code:ParserFailure) More information on the error can be found here.

I think the graph explorer is bugged...

Regards

Answer 1

The resource graph supports a subset of KQL language elements. Based on this article , I would say let is not supported.