is it possible to have a update policy on a follower cluster in ADX, to write data to a new table in the follower cluster, when data in a leader table is ingested?
Thanks!
no, a followed database is in 'read-only' mode - neither metadata nor data can be updated on it, so you can't (for example) - add/remove a table, ingest data into a table.
there's a small set of policies that can be overridden on a followed database (e.g. authorization & caching) - those are documented here