Disable auto-start of postgres server on boot (Mac) Running a Mac.  I installed Postgresql 9 many years ago and configured it to auto-start.  Now I have upgraded to version 12 using brew, but on system restart version 9 server is still starting automatically.  I don't know how to determine what is starting it, I don't see anything in my bash_profile and I don't see a feature in brew or pg_ctl that allows me to disable an auto-start configuration.  I have no postgres files in /Library/LaunchAgents either.  Thanks
In answer to Prevent PostgreSQL from running at startup on Super User:
ithinkiknowruby wrote:

cd /Library/LaunchDaemons/
sudo rm com.edb.launchd.postgresql-9.0.plist