chzhzh:
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chzhzh:
博客地址：https://www.cnblogs.com/chenzhenzhen/
ubuntu 安装 postgresql 和 postgis
ActiveRecord::StatementInvalid: PG::UndefinedTable: ERROR: relation "geometry_columns" do
heroku create ENOTFOUND: getaddrinfo ENOTFOUND api.heroku.com api.heroku.com:443
how to change the ruby and rails version
how to change the original ruby version in Rails app
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The data directory was initialized by PostgreSQL version 9.6, which is not compatible with this vers