1、先用源码安装9.3

2、修改环境变量path

3、初始化9.3数据库

initdb -E utf8 --locale=zh_CN.UTF8 -D /Users/heyong/opt/pgsql93/data/

4、安装pg_upgrade、pg_upgrade_support

contrib目录下(可能需要把so文件拷贝到lib目录）

5、升级自定义包（如果老版本有安装自定义包）

6、执行升级

pg_upgrade -d /Users/heyong/opt/pgsql/data -D /Users/heyong/opt/pgsql93/data/ -b /Users/heyong/opt/pgsql/bin/ -B /Users/heyong/opt/pgsql93/bin/

7、拷贝pg_hba.conf，pg_ident.conf，postgresql.conf 文件

8、启动数据库

如果报

connection to database Failed: FATAL: must be superuser to connect in binary upgrade mode

export PGUSER=www