Mac上使用homebrew安装PostgreSql 相关总结

1. brew安装命令brew install postgresql2. 查看安装的版本pg_ctl -V3. 安装成功之后，安装路径为：/usr/local/var/postgres4. 初始化数据库：initdb /usr/local/var/postgres5. 配置开机登陆（可选）：

$ mkdir -p ~/Library/LaunchAgents
$ cp /usr/local/Cellar/postgresql/9.3.5_1/homebrew.mxcl.postgresql.plist ~/Library/LaunchAgents/
$ launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist

手动启动 postgresql

$ pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start

查看状态：

pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log status

停止：

$ pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log stop -s -m fast

6.连接数据库7.查看进程：

$ ps auxwww | grep postgres
june            56126   0.0  0.0  2432772    644 s000  S+    5:01下午   0:00.00 grep postgres
june            56058   0.0  0.0  2467360    584   ??  Ss    5:00下午   0:00.00 postgres: stats collector process
june            56057   0.0  0.0  2611808   1744   ??  Ss    5:00下午   0:00.00 postgres: autovacuum launcher process
june            56056   0.0  0.0  2611676    696   ??  Ss    5:00下午   0:00.00 postgres: wal writer process
june            56055   0.0  0.0  2611676    944   ??  Ss    5:00下午   0:00.01 postgres: writer process
june            56054   0.0  0.0  2611676    756   ??  Ss    5:00下午   0:00.00 postgres: checkpointer process
june            56044   0.0  0.2  2611676  14096 s000  S     5:00下午   0:00.02 /usr/local/Cellar/postgresql/9.3.5_1/bin/postgres -D /usr/local/var/postgres

8.卸载

$ brew uninstall postgres

如果配置了开机登陆：

$ launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
$ rm -rf ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist

9.进入命令行模式：

$ psql -U test test_db -h localhost -W

如果出现 

FATAL: Ident
authentication failed for user

，是因为：This is because by default PostgreSQL uses ‘ident’ authentication i.e it checks if the username exists on the system. You need to change authentication mode to ‘trust’ as we do not want to add a system user. Modify the settings in “pg_hba.conf” to use ‘trust’authentication.请修改 /usr/local/var/postgres/pg_hba.conf 为：

host    all             all             127.0.0.1/32            trust
# IPv6 local connections:
host    all             all             ::1/128                 trust

安装 pgadmin，下载地址：http://www.pgadmin.org/download/macosx.php