使用pg_basebackup做備份
restore_command = 'gunzip -c /var/lib/pgsql/archive/%f.gz > %p'
recovery_target_xid= 6710

restore_command = 'gunzip -c /var/lib/pgsql/archive/%f.gz > %p'
recovery_target_timeline = 'latest'

查看事件ID

select txid_current();

切換xlog
select pg_switch_xlog();