[atlasdb@vm2 ~]$ psql
psql (11.5)
PSQL: Release 2.7.0
Connected to:
AtlasDB V2.7 Enterprise Edition Release - 64-bit Production
Type "help" for help.

atlasdb=# select pg_is_in_recovery();
 pg_is_in_recovery 
-------------------
 f
(1 row)

atlasdb=# select * from pg_stat_replication ;
 pid  | usesysid | usename | application_name |  client_addr  | client_hostname | client_port |         backend_start         | backend_xmin |   state   | sent_lsn  | write_lsn | flush_lsn | replay_lsn |    write_lag    |   flush_lag    |   replay_lag    |
 sync_priority | sync_state 
------+----------+---------+------------------+---------------+-----------------+-------------+-------------------------------+--------------+-----------+-----------+-----------+-----------+------------+-----------------+----------------+-----------------+
---------------+------------
 3399 |       10 | atlasdb | walreceiver      | 192.168.0.201 |                 |       38144 | 2019-12-25 18:59:59.275035+08 |              | streaming | 0/30475D8 | 0/30475D8 | 0/30475D8 | 0/30475D8  | 00:00:00.006679 | 00:00:00.00858 | 00:00:00.008581 |
             0 | async
(1 row)

atlasdb=# select * from test_tab ;
 id |   name    |      e_mail      | d_id 
----+-----------+------------------+------
  1 | hemny     | hemny@qq.com     |   10
  2 | hemny_pg2 | hemny_pg2@qq.com |   10
(2 rows)

atlasdb=# insert into  test_tab values(3,'hemny_pg2_new','hemny_pg2_new@qq.com',10);
INSERT 0 1
atlasdb=# select * from test_tab ;
 id |     name      |        e_mail        | d_id 
----+---------------+----------------------+------
  1 | hemny         | hemny@qq.com         |   10
  2 | hemny_pg2     | hemny_pg2@qq.com     |   10
  3 | hemny_pg2_new | hemny_pg2_new@qq.com |   10
(3 rows)

atlasdb=#