pg_stat_get_backend_client_port()
A function reporting a backend's client port
pg_stat_get_backend_client_port() is a system function
pg_stat_get_backend_client_port() was added in PostgreSQL 8.1.
Usage
pg_stat_get_backend_client_port (integer) →integer
The backend is specified by a backend ID number reported by pg_stat_get_backend_idset(); see below for an execution example.
The value returned by pg_stat_get_backend_client_port() corresponds to the column client_port in pg_stat_activity.
To obtain the client port of the current backend, use inet_client_port().
Related functions
The following related functions are also available:
pg_stat_get_backend_activity()pg_stat_get_backend_activity_start()pg_stat_get_backend_client_addr()pg_stat_get_backend_dbid()pg_stat_get_backend_pid()pg_stat_get_backend_start()pg_stat_get_backend_userid()pg_stat_get_backend_wait_event()pg_stat_get_backend_wait_event_type()pg_stat_get_backend_xact_start()
Change history
- PostgreSQL 8.1
- added (commit 4744c1a0)
Examples
Basic usage example for pg_stat_get_backend_client_port():
postgres=# SELECT pg_stat_get_backend_pid(s.backendid) AS pid,
pg_stat_get_backend_client_port(s.backendid) AS client_port
FROM (SELECT pg_stat_get_backend_idset() AS backendid) AS s;
pid | client_port
---------+-------------
1451980 |
1451982 |
2089310 | 57760
1764534 | 34674
1451978 |
1451977 |
1451979 |
(7 rows)
References
- PostgreSQL documentation: Per-Backend Statistics Functions