尽管上面有所有的答案，我还是有5美分。

它适用于任何操作系统和从任何到任何postgres版本。

停止任何正在运行的postgres实例; 安装新版本并启动它;检查你是否可以连接到新版本; 将旧版本postgresql.conf ->端口从5432修改为5433; 启动旧版postgres实例; 打开终端并cd到新版本的bin文件夹; 执行命令pg_dumpall -p 5433 -U <username> | psql -p 5432 -U <username> 停止旧的postgres运行实例;

站在其他可怜的动物的肩膀上，踩着淤泥，我能够按照以下步骤重新站起来，并在约塞米蒂升级后运行:

假设您已经使用自制程序安装和升级Postgres，您可以执行以下步骤。

Stop current Postgres server: launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist Initialize a new 9.4 database: initdb /usr/local/var/postgres9.4 -E utf8 Install postgres 9.3 (as it was no longer present on my machine): brew install homebrew/versions/postgresql93 Add directories removed during Yosemite upgrade: mkdir -p /usr/local/var/postgres/{pg_tblspc,pg_twophase,pg_stat_tmp}/touch /usr/local/var/postgres/{pg_tblspc,pg_twophase,pg_stat_tmp}/.keep run pg_upgrade: pg_upgrade -v -d /usr/local/var/postgres -D /usr/local/var/postgres9.4 -b /usr/local/Cellar/postgresql93/9.3.5/bin/ -B /usr/local/Cellar/postgresql/9.4.0/bin/ Move new data into place: cd /usr/local/var mv postgres postgres9.3 mv postgres9.4 postgres Restart Postgres: launchctl load ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist Check /usr/local/var/postgres/server.log for details and to make sure the new server started properly. Finally, re-install related libraries? pip install --upgrade psycopg2 gem uninstall pg gem install pg

看来Homebrew现在已经有了解决方案:

$ brew info postgresql
...
==> Caveats
To migrate existing data from a previous major version of PostgreSQL run:
  brew postgresql-upgrade-database
....

这对我很有用。

https://gist.github.com/dideler/60c9ce184198666e5ab4

言简意赅。老实说，我的目标不是理解PostgreSQL的精髓，我只想把事情做好。

我认为这是您将postgres更新到9.6的解决方案的最佳链接

https://sandymadaan.wordpress.com/2017/02/21/upgrade-postgresql9-3-9-6-in-ubuntu-retaining-the-databases/

如果你正在使用自制和自制服务，你可能只需要做:

brew services stop postgresql
brew upgrade postgresql
brew postgresql-upgrade-database
brew services start postgresql

我认为如果您正在使用高级postgres功能，这可能不完全有效，但它对我来说非常有效。