Data Mover synchronization services uses Postgres replication under the covers to synchronize data from the active repository to the standby repository. Postgres replication works in the following order:
- A publication is created on the active repository
- A subscription is created on the standby repository
- Data Mover tables are added to the publication
- The publication detects all changes in the Data Mover tables and sends the changes to the standby repository
- The subscription on the standby receives the changes and applies them to the standby repository