在OSX上为PostgreSQL创建数据库并与客户端建立连接

Question

How can I start a PostgreSQL database and connect with a client in terminal?

I've tried this after installing postgreSQL with brew.

which psql

Results in this:

/usr/local/bin/psql

Then I try to start database with:

pg_ctl init -D /usr/local/bin/psql

Which gives:

The files belonging to this database system will be owned by user "matt".
This user must also own the server process.

The database cluster will be initialized with locale "en_AU.UTF-8".
The default database encoding has accordingly been set to "UTF8".
The default text search configuration will be set to "english".

Data page checksums are disabled.

initdb: could not access directory "/usr/local/bin/psql": Not a directory
pg_ctl: database system initialization failed

Answer 1

You must create a data directory first and input its name after -D. Say if the data directory you created is /usr/local/bin/psql, then your init command will be

pg_ctl init -D /usr/local/bin/psql/data

Answer 2

From the PostgreSQL pg_ctl documentation:

-D datadir

--pgdata datadir

Specifies the file system location of the database configuration files. If this is omitted, the environment variable PGDATA is used.

You are specifying your pgsql executable as your data directory.