I am trying to configure a connection between Google BigQuery to Google AlloyDB (I want to query AlloyDB from Bigquery). Trying to follow these instructions: https://cloud.google.com/bigquery/docs/cloud-sql-federated-queries with no much success... (seems as AlloyDB is not considered as cloud sql)
As Daniel's comment says, AlloyDB is not the same product as Cloud SQL and federated queries are not currently implemented from BigQuery to AlloyDB.