code: func (s *Store) Execute(ex *ExecuteRequest) (*ExecuteResponse, error) {
  	return s.execute(nil, ex)
  }
docs: // Execute executes queries that return no rows, but do modify the database.
  // Changes made to the database through this call are applied via the Raft
  // consensus system. The Store must have been opened first. Must be called
  // on the leader or an error will we returned. The changes are made using
  // the database connection built-in to the Store.