discourse/db/migrate/20150617080349_add_index_on_post_notifications.rb

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class AddIndexOnPostNotifications < ActiveRecord::Migration[4.2]
  def change
    add_index :notifications, [:user_id, :topic_id, :post_number]
  end
end
Fix all the errors to get our tests green on Rails 5.1. 2017-08-31 12:06:56 +08:00			`class AddIndexOnPostNotifications < ActiveRecord::Migration[4.2]`
PERF: missing index on notifications this was slowing down acting on a post 2015-06-17 16:05:52 +08:00			`def change`
			`add_index :notifications, [:user_id, :topic_id, :post_number]`
			`end`
			`end`