| MiniOB 1
    MiniOB is one mini database, helping developers to learn how database works. | 
the meta information of bplus tree 更多...
#include <bplus_tree.h>
| Public 成员函数 | |
| const std::string | to_string () | 
the meta information of bplus tree
this is the first page of bplus tree. only one field can be supported, can you extend it to multi-fields?