private Dns Zone Id
The ID of the private DNS zone to create the PostgreSQL Flexible Server.
Note: There will be a breaking change from upstream service at 15th July 2021, the
private_dns_zone_idwill be required when setting adelegated_subnet_id. For existing flexible servers who don't want to be recreated, you need to provide theprivate_dns_zone_idto the service team to manually migrate to the specified private DNS zone. Theazure.privatedns.Zoneshould end with suffix.postgres.database.azure.com.