Set up logical replication and decoding

In essence, the primary server has the ability to recycle the WAL if the primary no longer requires it What if, however, the replica has not yet eaten it? The

Set up logical replication and decoding A replication slot is created on the primary database server for each standby server The slot keeps track of the last confirmed receive location of WAL data on

In essence, the primary server has the ability to recycle the WAL if the primary no longer requires it What if, however, the replica has not yet eaten it? The

replication slot is active for pid PostgreSQL must wait until all client replication slots are acknowledged before the slots can be deleted Consequently, if a client does not

should be UNIQUE and must contain NOT NULL columns; 28 Replica Identity ○ FULL ○ Entire old row is written in WAL ○ Most resource

replication slot does not exist The concept of replication slots was introduced in PostgreSQL and was created to prevent a primary instance to delete WAL that a replica

This parameter does not apply to physical slots It will be ignored with slot_type Examples¶