Postgres Maintenance

Postgres Maintenance replication slot postgres Replication slots were introduced with PostgreSQL and are designed to ensure that any standby connected to the primary using a replication slot will always replication slot does not exist A replication slot is a feature in PostgreSQL that ensures that the master server will retain the WAL logs that are needed by the replicas

replication slot does not exist Store replication slot name , type , plugin , database and datoid If PostgreSQL version is 10 or newer also store catalog_xmin and confirmed_flush_lsn When

replication slot Replication slots for High Availability A replication slot exists solely on the instance that created it, and PostgreSQL does not replicate it on the standby A replication slot represents one specific stream of changes coming from a Postgres database and keeps track of how far a consumer has processed