logical replication slots
Mathematics for Computer Science - MIT CSAIL
In Amazon RDS for PostgreSQL, users can manually create a logical replication slot on the writer DB instance of a Multi-AZ DB cluster.
PostgreSQL 13: Don't let slots kill your primary | EDB
Activating replication slots allows for efficient and reliable data replication in PostgreSQL. By authorizing the Rivery user with the REPLICATION role, you enable the necessary permissions for managing replication slots.
Using PostgreSQL Replication Slots
In Postgres 9.4, replication slots were introduced. A process receiving changes via streaming replication can create a replication slot on the primary server.