pg_top is 'top' for PostgreSQL. It is derived from Unix Top. Similar
to top, pg_top allows you to monitor PostgreSQL processes. It also
allows you to:
* View currently running SQL statement of a process.
* View query plan of a currently running SELECT statement.
* View locks held by a process.
* View user table statistics.
* View user index statistics
man page suggestion from sthen - thanks!
feedback and ok merdely
