检查pgsql 日志复制级别

修改完postgresql.conf文件，需要重启数据库，再执行以下语句验证下是否生效；

 

 select name,setting from pg_settings where name='wal_level';
select name,setting from pg_settings where name='max_replication_slots';
select name,setting from pg_settings where name='max_wal_senders';