Avoid Memory Blowups: find_each + select Columns

                  class Backfills::NormalizeTitles
  def call
    Snip.select(:id, :title).find_each(batch_size: 2000) do |snip|
      normalized = snip.title.to_s.strip
      next if normalized == snip.title

      Snip.where(id: snip.id).update_all(title: normalized, updated_at: Time.current)
    end
  end
end