{"image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/t/tgk/20120104/20120104234548.png","author_url":"https://blog.hatena.ne.jp/tgk/","url":"https://tgk.hatenadiary.org/entry/20120104/1325693193","width":"100%","provider_name":"Hatena Blog","height":"190","blog_url":"https://tgk.hatenadiary.org/","published":"2012-01-04 01:06:33","author_name":"tgk","title":"InnoDB\u306eclustered index\u306f\u3042\u307e\u308a\u5f79\u306b\u7acb\u3063\u3066\u306a\u3044\u3093\u3058\u3083\u306a\u3044\u306e\u304b","categories":["MySQL","\u3088\u304f\u308f\u304b\u3089\u306a\u3044\u3053\u3068"],"provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftgk.hatenadiary.org%2Fentry%2F20120104%2F1325693193\" title=\"InnoDB\u306eclustered index\u306f\u3042\u307e\u308a\u5f79\u306b\u7acb\u3063\u3066\u306a\u3044\u3093\u3058\u3083\u306a\u3044\u306e\u304b - \u6975\u5317\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"\u6975\u5317\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0","version":"1.0","description":"\u7e01\u3042\u3063\u3066\u4ed5\u4e8b\u3067MySQL\u3092\u4f7f\u3044\u305d\u3046\u306a\u306e\u3067\u3001\u3044\u307e\u306eMySQL\u304c\u3069\u3046\u306a\u3063\u3066\u3044\u308b\u306e\u304b\u5c11\u3057\u305a\u3064\u8abf\u3079\u3066\u3044\u308b\u3002 \u3067\u3001\u73fe\u5728\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30b9\u30c8\u30ec\u30fc\u30b8\u30a8\u30f3\u30b8\u30f3\u3067\u3042\u308bInnoDB\u306e\u8a2d\u8a08\u601d\u60f3\u306b\u56f0\u60d1\u3057\u3066\u3044\u308b\u3002 InnoDB\u306f\u4e3b\u30ad\u30fc\u3092\u5f37\u5236\u7684\u306bclustered index\u306b\u3059\u308b\u3068\u306e\u3053\u3068\u3060\u304c\u3001\u305d\u308c\u3063\u3066\u4f55\u306e\u5f79\u306b\u7acb\u3064\u306e\u3060\u308d\u3046\u304b\uff1f \u4f55\u306e\u305f\u3081\u306eclustered index\u304b\uff1f clustered index\u306e\u5229\u70b9\u306f \u4e00\u822c\u306eb-tree index\u306b\u6bd4\u3079\u3066\u3001range scan\u304c\u5727\u5012\u7684\u306b\u901f\u3044*1 \u5927\u91cf\u30c7\u30fc\u30bf\u540c\u58eb\u3092\u6700\u901f\u3067\u7d50\u5408\u3059\u308b\u300c\u30bd\u30fc\u30c8\u306a\u3057Merge Join\u300d\u304c\u4f7f\u3048\u308b \u306e2\u70b9\u3060*2\u3002 \u3053\u308c\u3089\u306e\u5229\u70b9\u306e\u4ee3\u511f\u3068\u3057\u3066 \u884c\u9577\u3092\u62e1\u5927\u3059\u308b\u3088\u3046\u306a\u2026","type":"rich"}