static void stmt_update_metadata(MYSQL_STMT *stmt, MYSQL_ROWS *data)
{
  MYSQL_BIND  *my_bind, *end;
  MYSQL_FIELD *field;
  uchar *null_ptr, bit;
  uchar *row= (uchar*) data->data;
#ifndef DBUG_OFF
  uchar *row_end= row + data->length;
#endif

  null_ptr= row;
  row+= (stmt->field_count+9)/8;		/* skip null bits */
  bit= 4;					/* first 2 bits are reserved */

  /* Go through all fields and calculate metadata */
  for (my_bind= stmt->bind, end= my_bind + stmt->field_count, field= stmt->fields ;
       my_bind < end ;
       my_bind++, field++)
  {
    if (!(*null_ptr & bit))
      (*my_bind->skip_result)(my_bind, field, &row);
    DBUG_ASSERT(row <= row_end);
    if (!((bit<<=1) & 255))
    {
      bit= 1;					/* To next uchar */
      null_ptr++;
    }
  }
}
Unknown