数据库表结构设计范例
| column1 | column2 | column3 | column4 | column5 | column6 | columnx |
| value1 | value2 | value3 | value4 | value5 | value6 | {"k1":v1,"k2":v2,"k3":v3} |
| column1 | column2 | column3 | column4 | column5 | column6 | columnx |
| value1 | value2 | value3 | value4 | value5 | value6 | {"k1":v1,"k2":v2,"k3":v3} |