How to install postgres in mac

Install postgres in mac by using brew

• brew install postgres

Want to view info about postgres

•    brew info postgresql

After installing postgres , better restart your host which will automatically start postgres or you can use following commands to start postgres..

•     pg_ctl -D /usr/local/var/postgres start
•     pg_ctl -D /usr/local/var/postgres stop -m fast

Modify config file to set password , if you don’t want to set password then leave it as trust . 

• file : /usr/local/var/postgres/pg_hba.conf

• host    all             all             127.0.0.1/32            trust

Just logging with psql and check it 

•   psql -U postgres

If its thrown error as “Postgres user doesn’t exist” then clean up postgres data by using following commands 

•   Navigate to file directory :   cd /usr/local/var/
•   clean up everything : rm -rf *
•   initdb -U postgres  -D postgres