utf8_unicode_ci ã«å¯¾ã™ã‚‹æ—¥æœ¬ã®é–‹ç™ºè€…ã®è¦‹è§£ - ã‹ã¿ã½ã‚ーるRailsãŒMySQLã®collationをサーãƒãƒ¼å´ã®ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã®utf8_general_ciã‹ã‚‰utf8_unicode_ciã«ã‚ã–ã‚ã–変ãˆã¦ã‚‹ã®ã©ã†ã›å¤§ã—ãŸç†ç”±ã˜ã‚ƒãªã„ã ã‚ã¨æ€ã£ã¦æŽ˜ã£ã¦ã¿ãŸã‚‰ã‚„ã£ã±ã‚Šå¤§ã—ãŸç†ç”±ã˜ã‚ƒãªã‹ã£ãŸâ€¦ https://t.co/6NeetGhTF0— Ryuta Kamizono (@kamipo) April 18, 2014 Railsã§collationã¨ã—ã¦utf8_unicode_ci(Railsã®DEFAULT_COLLATION)ãŒæŽ¡ç”¨ã•ã‚Œã‚‹ã®ã¯charsetãŒæœªæŒ‡å®šã‚‚ã—ãã¯utf8(Railsã®DEFAULT_CHARSET)ã®ã¨ãã ã‘ã§ã€utf8mb4ã«ã™ã‚‹ã“ã¨ã¨ã‹ã¯å…¨ã考慮ã•ã‚Œã¦ãªã„。— Ryuta Kamizono (@kamipo) April 19, 2014 @frsyuki MySQLã®charset utf8ã®ã¨ãã®ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆ
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