mysql之Row size too large (> 8126)问题解决方案

mysql之Row size too large (> 8126)问题解决方案

问题描述：

项目中涉及文本存储（mysql数据库中设置为text）,如果要存储的数据过大，项目中报错如下：

### Error updating database.  Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Row size too large (> 8126). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
### The error may exist in file [E:\fjt\2020\workspace\SWAP_background_service\target\classes\mybatis\mapper\equipment_manage\HistoryMapping.xml]
### The error may involve com.liansheng.swap.mapper.equipment_manage.HistoryMapper.update-Inline
### The error occurred while setting parameters
### SQL: update swap_variable_history          SET hour01 = ?          WHERE deptid = ?  and variableid = ? and collectorid = ?
### Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Row size too large (> 8126). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.

解决方案：

1.设置mysql全局变量
设置命令：SET GLOBAL innodb_file_format='Barracuda';
检查命令：show GLOBAL VARIABLES LIKE '%file_format%';
2.设置对应表的属性（行格式）
alter table 表名 ROW_FORMAT=COMPRESSED

参考文章：https://blog.csdn.net/fallcreek/article/details/49495915

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