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MySQL 建索引時報 Specified key 'idx_t' was too long; max key length is 767 bytes 錯誤的解決辦法~
時間 2021-01-05
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MySQL
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今天在做 sql 優化時,對之前的表添加個索引,卻報出了 Specified key 'idx_t' was too long; max key length is 767 bytes 提示 後來通過查詢資料,發現: 由於 MySQL Innodb 引擎表索引字段長度的限制爲 767 字節,因此對於多字節字符集的大字段(或者多字段組合索引),創建索引會出現上面的錯誤。 以 utf8mb4 字符集
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hive報錯: Specified key was too long; max key length is 767 bytes(詳解!!!)
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Specified key was too long; max key length is 767
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