On Fri, Aug 19, 2022, at 2:10 PM, Zhihong Yu wrote: > I want to poll the community on whether including proc->pid's in the error > message would be useful for troubleshooting. Such message is only useful for a parameter into a pg_stat_activity query. You don't need the PID list if you already have the most important information: database name. I don't think revealing the current session PIDs from the database you want to drop will buy you anything. It could be a long list and it does not help you to solve the issue: why wasn't that database removed? Besides that, if you know that there is a possibility that a connection is open, you can always use the FORCE option. The old/other alternative is to use a query like SELECT pg_terminate_backend(pid) FROM pg_stat_activity WHERE datname = 'foo'; (possibly combined with a REVOKE CONNECT or pg_hba.conf modification) before executing DROP DATABASE.
-- Euler Taveira EDB https://www.enterprisedb.com/