Inside logical replication in PostgreSQL: How it works

Replication slots provide an automated way to ensure that the primary does not remove WAL segments until they have been received by all standbys

Inside logical replication in PostgreSQL: How it works Examples · Create physical_one physical slot if doesn't exist · postgres · physical_one · Remove physical_one slot if exists · postgres · physical_one · ansible

Replication slots provide an automated way to ensure that the primary does not remove WAL segments until they have been received by all standbys

postgres delete replication slot Replication is done through publications, a method of choosing which changes to send to other systems Publications can

If set to -1 , you will not be able to delete WAL files due to open logical replication slots that information is not read from

postgresql create replication slot PostgreSQL versions where pgoutput wasn't yet introduced To use test_decoding , first create a logical replication slot with test_decoding as the plugin type

Replication slots are used to safeguard against the premature deletion of WAL segments before they have been applied by the standby server, thus