replication slot postgres

START_REPLICATION 无论是物理复制，还是逻辑复制，使用PostgreSQL的发布订阅或者

This section describes the logical replication protocol, which is the message flow started by the START_REPLICATION SLOT slot_name LOGICAL replication command

start_replication slot START_REPLICATION SLOT sub1 LOGICAL 0 15AF3F60 15:20:

best in slot guardian druid The size of the replication slot is in hundreds of GB, approaching 1 TB PostgreSQL cannot replay the WAL in memory and must write to disk before streaming