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前些時候在 X 上面看到有人談論到， aws 將他們的 pgactive open source 出來了。
什麼是 pgactive 呢? Link to heading
根據 aws 自己的網頁， PostgreSQL 的主動-主動式複寫擴充功能
#wal_keep_size = 0 # in megabytes; 0 disables
#max_slot_wal_keep_size = -1 # in megabytes; -1 disables
#idle_replication_slot_timeout = 0 # in seconds; 0 disables
#wal_sender_timeout = 60s # in milliseconds; 0 disables
track_commit_timestamp = on # collect timestamp of transaction commit
# (change requires restart)