Which retention policy names does InfluxDB 2.x preserve as bucket labels during a 1.x to 2.x upgrade?
InfluxDB 2.x replaces the 1.x retention policy model with a bucket-based retention system, creating an unresolved compatibility question for users upgrading existing databases. The documented upgrade path does not automatically migrate retention policy names as bucket labels, leaving the mapping of original policy identifiers to new bucket names as a decisio