Cosmosdb postgresql cluster get connection string

Terraform Providers Azure
1

How do we get the connection string of the Cosmos Db postgres coordinator node in terraform? The connection string seems to be structured according to the following scheme:

Server=c-<CLUSTER NAME>.<RANDOM ID>.postgres.cosmos.azure.com;Database=citus;Port=5432;User Id=citus;Password={your_password};Ssl Mode=Require;

The name of the cluster is exported accordingly from the resource, but the id seems to be missing.

connection_string {
    name = "CosPos"
    type = "Custom"
    value = "Server=c-${azurerm_cosmosdb_postgresql_cluster.main.name}.${ID?}.postgres.cosmos.azure.com;Database=citus;Port=5432;User Id=citus;Password=${azurerm_cosmosdb_postgresql_cluster.main.administrator_login_password};Ssl Mode=VerifyFull;"
  }

Is this a restriction by Azure itself?