db/migrate/20170921115009_add_project_repository_storage_index.rb


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class AddProjectRepositoryStorageIndex < ActiveRecord::Migration[4.2]
  include Gitlab::Database::MigrationHelpers

  DOWNTIME = false

  disable_ddl_transaction!

  def up
    add_concurrent_index(*index_spec) unless index_exists?(*index_spec)
  end

  def down
    remove_concurrent_index(*index_spec) if index_exists?(*index_spec)
  end

  def index_spec
    [:projects, :repository_storage]
  end
end