You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: 20190607110030_add_indexes_for_analytics.rb
    path of file: ./repos/forem/db/migrate
    
    the code of the file until where you have to start completion: class AddIndexesForAnalytics < ActiveRecord::Migration[5.2]
  # transactions are disable
    
  def change
    # concurrent creation avoids downtime during production deploy because
    # indexes get created in the background
    add_index :articles, :published, algorithm: :concurrently
    add_index :comments, :created_at, algorithm: :concurrently
    add_index :comments, :score, algorithm: :concurrently
    add_index :follows, :created_at, algorithm: :concurrently
    add_index :page_views, :created_at, algorithm: :concurrently
    add_index :reactions, :created_at, algorithm: :concurrently
    add_index :reactions, :points, algorithm: :concurrently
  end
end