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Specified key was too long; max key length is 3072 bytes_specified key was too long 3072

specified key was too long 3072

mysql默认情况下单个列的索引不能超过767位

可以启用innodb_large_prefix选项,将约束项扩展至3072byte;

set global innodb_large_prefix=1;

set global innodb_file_format=BARRACUDA;

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