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: 20201103170213_refresh_trashed_groups.rb
    path of file: ./repos/arvados/services/api/db/migrate
    
    the code of the file until where you have to start completion: # Copyright (
    
  def change
    # The original refresh_trashed query had a bug, it would insert
    # all trashed rows, including those with null trash_at times.
    # This went unnoticed because null trash_at behaved the same as
    # not having those rows at all, but it is inefficient to fetch
    # rows we'll never use.  That bug is fixed in the original query
    # but we need another migration to make sure it runs.
    refresh_trashed
  end