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

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

create table idx_length_test_02

(

id int auto_increment primary key,

name varchar(255)

)

ROW_FORMAT=DYNAMIC default charset utf8mb4;

原文地址：https://www.cnblogs.com/wang-yaz/p/10942869.html

时间： 2024-08-01 03:24:30

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