Is it possible to create a follower database to the leader cluster in a different tenant using PowerShell (New-AzKustoAttachedDatabaseConfiguration cmdlet)? And if not, can we say that the only way to do that is through Azure Data Share ?

I am trying to get the kusto scan operator to work for this use case. I want to create pairs where columnA matches.

Does the attachment of a database require this same DB to be created beforehand or not exactly? The attachment process “creates” DB on the fly?
I read the documentation, but that information is not very clear.

We plan to use Graph capabilities of ADX and are looking for guidance. Our scenario is when a vertex (or any of its property) is changed, we want to capture all the related nodes.

I’m working with Kusto Query Language (KQL) and I want to reference a list of columns in one variable for summarization, instead of specifying each column individually. Here’s an example of what I have: