Postgresql服务器在本地计算机上运行但psql无法连接

Postgresql server is running on local machine but psql can not connect

做完brew install postgres之后：

1 2	brew install postgres brew link --overwrite postgresql

Postgres已经在运行：

1 2	/~ $brew services START postgresql Service `postgresql` already started, USE `brew services restart postgresql` TO restart.

但那么我们如何使用psql客户端进行连接？

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13:47:28/~ $psql
psql: could NOT CONNECT TO server: No such file OR directory
IS the server running locally AND accepting
connections ON Unix DOMAIN socket"/tmp/.s.PGSQL.5432"?

更新尝试了各种建议。

尝试重新启动..

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$brew services START postgresql
Service `postgresql` already started, USE `brew services restart postgresql` TO restart.
14:37:19/fastparquet $brew services restart postgresql
Stopping `postgresql`... (might take a while)
==> Successfully stopped `postgresql` (label: homebrew.mxcl.postgresql)
==> Successfully started `postgresql` (label: homebrew.mxcl.postgresql)

14:37:39/fastparquet $psql
psql: could NOT CONNECT TO server: No such file OR directory
IS the server running locally AND accepting
connections ON Unix DOMAIN socket"/tmp/.s.PGSQL.5432"?
14:37:55/fastparquet $

连接到localhost？

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14:37:34/fastparquet $psql -h localhost
psql: could NOT CONNECT TO server: Connection refused
IS the server running ON host"localhost" (::1) AND accepting
TCP/IP connections ON port 5432?
could NOT CONNECT TO server: Connection refused
IS the server running ON host"localhost" (127.0.0.1) AND accepting
TCP/IP connections ON port 5432?