mastofe

20171125190735_remove_old_reblog_index_on_statuses.rb (419B)

class RemoveOldReblogIndexOnStatuses < ActiveRecord::Migration[5.1]
  disable_ddl_transaction!
  def up
    # This index may not exists (see migration 20171122120436)
    remove_index :statuses, [:account_id, :reblog_of_id] if index_exists?(:statuses, [:account_id, :reblog_of_id])
    remove_index :statuses, :reblog_of_id
  end
  def down
    add_index :statuses, :reblog_of_id, algorithm: :concurrently
  end
end