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Kill all user sessions to a single database in PostgreSQL

This is something I found myself doing a few times and it's not obvious.

Start a super user shell and run this, replace with your database name.

SELECT pg_terminate_backend(
FROM pg_stat_activity
WHERE pg_stat_activity.datname = '<my-database>'
  AND pid <> pg_backend_pid();

Last update: October 2, 2021