$ brew install postgresql : : ==> /usr/local/Cellar/postgresql/9.3.4/bin/initdb /usr/local/var/postgres ==> Summary ? /usr/local/Cellar/postgresql/9.3.4: 2921 files, 38M $ initdb /usr/local/var/postgres -E utf8 The files belonging to this database system will be owned by user "dai". This user must also own the server process. The database cluster will be initialized with locale "ja_JP.UTF-8". init