replication slots
How to Convert PostgreSQL Streaming Replication to Logical Replication
How to convert PostgreSQL's streaming replication to logical replication, a more flexible and selective method for replicating specific tables and filter data without starting anew.
Giới thiệu về chức năng Replication(đồng bộ dữ liệu) của ...
If max_slot_wal_keep_size is -1 (the default), replication slots may retain an unlimited amount of WAL files. Otherwise, if restart_lsn of a replication slot ...
Documentation: 9.4: pg_replication_slots
PostgreSQL also has streaming replication slots (see Section 26.2.5), but they are used somewhat differently there.