Show PostgreSQL current (running) process list;

processlist.sql

SELECT user, pid, client_addr, waiting, query, query_start, NOW() - query_start AS elapsed
FROM pg_stat_activity
WHERE query != '<IDLE>'
-- AND EXTRACT(EPOCH FROM (NOW() - query_start)) > 1
ORDER BY elapsed DESC;

Improve formatting

SELECT user, pid, client_addr, query, query_start, NOW() - query_start AS elapsed
FROM pg_stat_activity
WHERE query != ''
-- AND EXTRACT(EPOCH FROM (NOW() - query_start)) > 1
ORDER BY elapsed DESC;