Mysql Specified key was too long; max key length is 767 bytes
导致这个问题的原因索引的字段都太长了,mysql受不了,解决方法就是,让mysql支持比较长的索引,然后在插入表的时候,添加ROW_FORMAT=DYNAMIC ,自动格式化索引。
ERROR 1071 (42000): Specified key was too long; max key length is 767 bytes
查看数据库信息
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show variables like 'innodb_large_prefix' ; show variables like 'innodb_file_format' ; --修改最大索引长度限制 set global innodb_large_prefix=1; set global innodb_file_format=BARRACUDA; -- 添加 set global innodb_file_format_max=BARRACUDA; |
2、修改插入sql的语句添加ROW_FORMAT=DYNAMIC
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create table idx_length_test_02 ( id int auto_increment primary key , name varchar (255) ) ROW_FORMAT= DYNAMIC default charset utf8mb4; |
hello world!!!