code: func (ts *TiDBStatement) Reset() {
  	for i := range ts.boundParams {
  		ts.boundParams[i] = nil
  	}
  
  	// closing previous ResultSet if it exists
  	if ts.rs != nil {
  		terror.Call(ts.rs.Close)
  		ts.rs = nil
  	}
  }
docs: // Reset implements PreparedStatement Reset method.