g index

🚤 Instant concurrent index migrations for Rails

Add this line to your application’s Gemfile:

gem "gindex", group: :development

rails g index users email

generates:

class AddIndexOnEmailToUsers < ActiveRecord::Migration[8.0]
  disable_ddl_transaction!

  def change
    add_index :users, :email, algorithm: :concurrently
  end
end

Also works with multi-column indexes

rails g index deliveries store_id delivered_at

View the changelog

Everyone is encouraged to help improve this project. Here are a few ways you can help:

• Report bugs
• Fix bugs and submit pull requests
• Write, clarify, or fix documentation
• Suggest or add new features

To get started with development:

git clone https://github.com/ankane/gindex.git
cd gindex
bundle install
bundle exec rake test