mastodon/db/migrate/20190820003045_update_statuses_index.rb

# frozen_string_literal: true

class UpdateStatusesIndex < ActiveRecord::Migration[5.2]
  disable_ddl_transaction!

  def up
    safety_assured { add_index :statuses, [:account_id, :id, :visibility, :updated_at], where: 'deleted_at IS NULL', order: { id: :desc }, algorithm: :concurrently, name: :index_statuses_20190820 } # rubocop:disable Naming/VariableNumber
    remove_index :statuses, name: :index_statuses_20180106 # rubocop:disable Naming/VariableNumber
  end

  def down
    safety_assured { add_index :statuses, [:account_id, :id, :visibility, :updated_at], order: { id: :desc }, algorithm: :concurrently, name: :index_statuses_20180106 } # rubocop:disable Naming/VariableNumber
    remove_index :statuses, name: :index_statuses_20190820 # rubocop:disable Naming/VariableNumber
  end
end