Rails和jsonb类型的"jsonb"不存在

本文介绍了Rails和jsonb类型的"jsonb"不存在的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 psql --version psql (PostgreSQL) 9.4.1 rails -v Rails 4.2.0

我通过这样的迁移添加了一个jsonb列

I added a jsonb column through migration like that

class AddPreferencesToUsers < ActiveRecord::Migration def change add_column :users, :preferences, :jsonb, null: false, default: '{}' add_index :users, :preferences, using: :gin end end

我收到此错误:

PG::UndefinedObject: ERROR: type "jsonb" does not exist LINE 1: SELECT 'jsonb'::regtype::oid

有什么帮助吗?

推荐答案

环顾四周后，我发现通过运行正确的命令，我的postgresql版本不是9.4

After looking around I discovered that my postgresql version is not 9.4 by running the right command

postgres=# SHOW SERVER_VERSION; server_version ---------------- 9.1

所以我只需要将我的postgresql升级到9.4.

So I had simply to upgrade my postgresql to 9.4.

按照我这篇文章的方式进行升级，我觉得非常方便.

By the way I followed this article to do the upgrading which I found very handy.

现在:

postgres=# SHOW SERVER_VERSION; server_version ---------------- 9.4.1

希望这对处于相同情况的人有所帮助.

Hope this help someone in the same situation.