Postgresql - unable to drop database because of some auto connections to DB

Question

Whenever I try to drop database I get:

ERROR:  database \"pilot\" is being accessed by other users
DETAIL:  There is 1 other session using the database.
         


        

Answer 1

In my opinion there are some idle queries running in the backgroud.

1. Try showing running queries first

SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '' AND query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

2. kill idle query ( Check if they are referencing the database in question or you can kill all of them or kill a specific using the pid from the select results )

SELECT pg_terminate_backend(procpid);

Note: Killing a select query doesnt make any bad impact