How can I start PostgreSQL server on Mac OS X?

The Homebrew package manager includes launchctl plists to start automatically. For more information, run brew info postgres.

pg_ctl -D /usr/local/var/postgres start

pg_ctl -D /usr/local/var/postgres stop

"To have launchd start postgresql now and restart at login:"

brew services start postgresql

What is the result of pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start?

What is the result of pg_ctl -D /usr/local/var/postgres status?

Are there any error messages in the server.log?

Make sure tcp localhost connections are enabled in pg_hba.conf:

# IPv4 local connections:
host    all    all    127.0.0.1/32    trust

Check the listen_addresses and port in postgresql.conf:

egrep 'listen|port' /usr/local/var/postgres/postgresql.conf

#listen_addresses = 'localhost'        # What IP address(es) to listen on;
#port = 5432                # (change requires restart)

Cleaning up

PostgreSQL was most likely installed via Homebrew, Fink, MacPorts or the EnterpriseDB installer.

Check the output of the following commands to determine which package manager it was installed with:

brew && brew list|grep postgres
fink && fink list|grep postgres
port && port installed|grep postgres

If you want to manually start and stop PostgreSQL (installed via Homebrew), the easiest way is:

brew services start postgresql

and

brew services stop postgresql

If you have a specific version, make sure to suffix the version. For example:

brew services start postgresql@10

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