{"blog_title":"tom__bo\u2019s Blog","image_url":null,"provider_url":"https://hatena.blog","width":"100%","type":"rich","author_name":"tom__bo","categories":["MySQL","MySQL 8.0"],"url":"https://tombo2.hatenablog.com/entry/2019/03/25/233801","version":"1.0","height":"190","blog_url":"https://tombo2.hatenablog.com/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftombo2.hatenablog.com%2Fentry%2F2019%2F03%2F25%2F233801\" title=\"MySQL 8.0 Descending index - tom__bo\u2019s Blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/tom__bo/","provider_name":"Hatena Blog","title":"MySQL 8.0 Descending index","published":"2019-03-25 23:38:01","description":"MySQL8.0\u306e\u6a5f\u80fd\u3092\u8abf\u3079\u3066\u307e\u3068\u3081\u3066\u3044\u308b\u3002 Descending index\u306b\u3064\u3044\u3066\u8aad\u3093\u3060\u307e\u3068\u3081\u3002 dev.mysql.com MySQL 8.0\u3067\u306f\u3001Descending index(DESC, \u964d\u9806\u306eindex)\u304c\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3002 \u3053\u308c\u307e\u3067\u306fASC(\u6607\u9806)\u306eindex\u3092\u9006\u9806\u306b\u30b9\u30ad\u30e3\u30f3\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u305f\u304c\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u4e0a\u306e\u30da\u30ca\u30eb\u30c6\u30a3\u304c\u3042\u3063\u305f\u3002 Descending index\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u964d\u9806\u306e\u30a2\u30af\u30bb\u30b9\u3067\u3082\u6b63\u9806\u3067\u30b9\u30ad\u30e3\u30f3\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002 optimizer\u306fDESC\u3092\u542b\u3080\u30de\u30eb\u30c1\u30ab\u30e9\u30e0index\u3067\u3042\u3063\u3066\u3082\u30b3\u30b9\u30c8\u3092\u8003\u616e\u3057\u3066\u3053\u308c\u3092\u5229\u7528\u3057\u3066\u304f\u308c\u308b\u3002 \u30b5\u30f3\u30d7\u30eb c1, c2\u30ab\u30e9\u30e0\u306bas\u2026"}