How to backup/restore Rails db with Postgres?

Question

I do the following on my server:

 pg_dump -O -c register_production > register.sql

Then, after copying register.sql to my local environment, I try:

 psql register_development < register.sql

This appears to work, but when I try to launch the Rails site locally, I get this:

 PG::UndefinedTable: ERROR:  relation "list_items" does not exist at character 28

How can I restore everything (including relations) from the server db to my local dev db?

Answer 1

我使用此命令来保存我的数据库:

pg_dump -F c -v -U postgres -h localhost <database_name> -f /tmp/<filename>.psql

这要恢复它:

pg_restore -c -C -F c -v -U postgres /tmp/<filename>.psql

这将以Postgres的自定义格式(-F c)转储数据库,默认情况下压缩该格式并允许重新排序其内容.-C -c将删除数据库(如果已存在)然后重新创建它,对您的情况有帮助.并-v指定详细信息,以便您可以确切了解发生了什么.