Registering Extract in Microservices Architecture for PostgreSQL

An Extract for PostgreSQL must be registered with the database and be granted a reserved replication slot. Replication slots are allocated through the database configuration setting max_replication_slots and can be configured as discussed in Database Configuration.

Follow these instructions to register an Extract. Extract registration must be done prior to creating an Extract. See REGISTER EXTRACT in the Command Line Interface Reference for Oracle GoldenGate for more information.

Using the Admin Client, connect to the deployment, then connect to the credential alias for the source database.

OGG> CONNECT https://remotehost:srvmgrport DEPLOYMENT
          deployment_name AS deployment_user PASSWORD deployment_password

OGG (https://remotehost:16000postgresql_source)> DBLOGIN USERIDALIAS alias

Register the Extract, which internally creates a replication slot for the Extract. Extract names cannot be more than 8 alpha-numeric characters.
```
OGG (https://remotehost:16000postgresql_source)> REGISTER EXTRACT extname
```

You can also register an Extract from the Oracle GoldenGate MA web interface. See Add a Primary Extract.