I want to create an optional dropdown parameter in an Azure Workbook. Creating a dropdown parameter with this guide is straight forward
Then the parameter can be referenced in KQL as shown in the example with
requests
| where name == '{RequestName}'
So far so good, I now want this parameter to be optional and if a value is not selected in the dropdown to get all the results unfiltered, like I would get if the |where part was not there at all. Right now if this parameter is not set then I get a Query could not be parsed error.
Is this possible?