Viewing the Activity Table on PostgreSQL in detail and Terminating a pid

pg_stat_activity.sql

-- To be able to use these in full detail, you must have the necesarry role authentication

-- Find activity list on DB
select * from pg_stat_activity

-- Find pid, user name, query, backend start date, transaction start date, query start date and the longest running sql times that are active and idle in transaction
SELECT  pid, usename, query, backend_start, xact_start, query_start, (now() - query_start) AS run_time FROM pg_stat_activity WHERE state IN ('active', 'idle in transaction') ORDER BY query_start

-- Terminate the sql with the given pid
SELECT
    pg_terminate_backend(pid) 
FROM
    pg_stat_activity 
WHERE
    -- don't kill my own connection!
    pid <> pg_backend_pid()
    -- don't kill the connections to other databases
   AND datname = {{database_name}}
AND pid in({{pid}});