module ActiveRecord::ConnectionAdapters::MySQL::DatabaseStatements

def exec_delete(sql, name = nil, binds = []) # :nodoc:
  if without_prepared_statement?(binds)
    @lock.synchronize do
      execute_and_free(sql, name) { @connection.affected_rows }
    end
  else
    exec_stmt_and_free(sql, name, binds) { |stmt| stmt.affected_rows }
  end
end