GetDatabaseRegions returns the active regions from the database's region enum.

NewCachedDatabaseRegions creates a new region cache by leasing the underlying descriptors for the system database and region enum.

NewCachedDatabaseRegionsAt creates a new region cache by leasing the underlying descriptors for the system database and region enum, with descriptors fetched at a specific timestamp.

NewProvider constructs a new Provider.

ErrNotMultiRegionDatabase is returned from SynthesizeRegionConfig when the requested database is not a multi-region database.

CachedDatabaseRegions tracks the regions that are part of a multi-region database.

Provider implements sql.RegionsProvider.

Connector is used to fetch the set of regions from the host cluster.

RegionSet is a map where each key is a region name.