{"width":"100%","author_name":"kamipo","blog_title":"\u304b\u307f\u307d\u308f\u30fc\u308b","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/k/kamipo/20180322/20180322074906.png","provider_url":"https://hatena.blog","title":"MySQL\u306e\u30af\u30a8\u30ea\u306e\u826f\u3057\u60aa\u3057\u306frows_examined\u3067\u5224\u65ad\u3059\u308b","description":"\u4ed5\u4e8b\u3084\u3089\u306a\u3093\u3084\u3089\u3067MySQL\u306e\u30af\u30a8\u30ea\u306e\u826f\u3057\u60aa\u3057\u3092\u5224\u65ad\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3068\u304d\u3001EXPLAIN\u306e\u5185\u5bb9\u3060\u3051\u3060\u3068\u3069\u306e\u3050\u3089\u3044\u826f\u304f\u306a\u3063\u305f\u308a\u60aa\u304f\u306a\u3063\u305f\u306e\u304b\u5206\u304b\u3089\u306a\u3044\u306e\u3067 SET long_query_time = 0; \u3057\u3066rows_examined (\u305d\u306e\u30af\u30a8\u30ea\u3067rows_sent\u884c\u306e\u7d50\u679c\u3092\u8fd4\u3059\u305f\u3081\u306b\u4f55\u884c\u306b\u89e6\u3063\u305f\u306e\u304b)\u3082\u4e00\u7dd2\u306b\u63d0\u793a\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u308b(\u5c11\u306a\u304f\u3068\u3082MySQL 5.7\u6642\u70b9\u3067\u306frows_examined\u306fslow_query_log\u3067\u3057\u304b\u78ba\u8a8d\u3067\u304d\u306a\u3044\u306f\u305aperformance_schema\u304c\u6709\u52b9\u306a\u3089events_statements_history\u3084\u305d\u306e\u4ef2\u9593\u305f\u3061\u3067\u78ba\u8a8d\u3067\u304d\u308b\u3068\u306e\u3053\u3068*1 MySQL :\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.kamipo.net%2Fentry%2F2018%2F03%2F22%2F084126\" title=\"MySQL\u306e\u30af\u30a8\u30ea\u306e\u826f\u3057\u60aa\u3057\u306frows_examined\u3067\u5224\u65ad\u3059\u308b - \u304b\u307f\u307d\u308f\u30fc\u308b\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","published":"2018-03-22 08:41:26","type":"rich","height":"190","url":"https://blog.kamipo.net/entry/2018/03/22/084126","author_url":"https://blog.hatena.ne.jp/kamipo/","categories":[],"provider_name":"Hatena Blog","blog_url":"https://blog.kamipo.net/"}