Curious why my Helm deployment creates these two containers:

airbyte-oss-postgresql-0                                         1/1     Running     0          
airbyte-postgresql-0                                             1/1     Running     0

This is specified in my Helm values:

postgresql:
  enabled: false

externalDatabase:
  host: ${db_host}
  user: ${db_user}
  password: ${db_password}
  database: ${db_name}
  port: ${db_port}