Add Docker README and Makefile for helper commands

[rails.git] / db / migrate / 20201006213836_add_author_index_to_changeset_comments.rb

class AddAuthorIndexToChangesetComments < ActiveRecord::Migration[6.0]
  disable_ddl_transaction!

  def change
    add_index :changeset_comments, [:author_id, :created_at], :algorithm => :concurrently
  end
end