{"id":7124,"date":"2024-11-14T11:25:21","date_gmt":"2024-11-14T03:25:21","guid":{"rendered":"https:\/\/fwq.ai\/blog\/7124\/"},"modified":"2024-11-14T11:25:21","modified_gmt":"2024-11-14T03:25:21","slug":"mysql-explain%e4%b8%ad%e7%9a%84filtered%e5%ad%97%e6%ae%b5%ef%bc%9a%e5%80%bc%e8%b6%8a%e5%a4%a7%e5%b0%b1%e4%b8%80%e5%ae%9a%e8%b6%8a%e5%a5%bd%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/7124\/","title":{"rendered":"MySQL EXPLAIN\u4e2d\u7684filtered\u5b57\u6bb5\uff1a\u503c\u8d8a\u5927\u5c31\u4e00\u5b9a\u8d8a\u597d\uff1f"},"content":{"rendered":"

\"MySQL<\/p>\n

MySQL EXPLAIN\u4e2d\u7684filtered\u5b57\u6bb5\u89e3\u6790<\/strong><\/p>\n

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\u4ee5\u4e0a\u5c31\u662fMySQL EXPLAIN\u4e2d\u7684filtered\u5b57\u6bb5\uff1a\u503c\u8d8a\u5927\u5c31\u4e00\u5b9a\u8d8a\u597d\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"

MySQL EXPLAIN\u4e2d\u7684filtered\u5b57\u6bb5\u89e3\u6790 \u5728MySQL\u4e2d\u4f7f\u7528EXPLAIN\u547d\u4ee4\u4e86\u89e3\u67e5\u8be2\u6267\u884c\u8ba1\u5212\u65f6\uff0c\u7ecf\u5e38\u4f1a\u5173\u6ce8filtered\u5b57\u6bb5\u3002\u8fd9\u4e2a\u5b57\u6bb5\u901a\u5e38\u88ab\u89e3\u91ca\u4e3a\u8fc7\u6ee4\u8bb0\u5f55\u6240\u5360\u7684\u767e\u5206\u6bd4\uff0c\u5e76\u901a\u8fc7\u4e58\u4ee5rows\u5f97\u51fa\u6247\u51fa\u503c\u3002\u4f46\u662f\uff0c\u7f51\u4e0a\u7684\u4e00\u4e9b\u8bf4\u6cd5\u5374\u58f0\u79f0filtered\u503c\u8d8a\u5927\u8d8a\u597d\uff0c\u5f15\u53d1\u4e86\u7406\u89e3\u4e0a\u7684\u56f0\u60d1\u3002 \u5b9e\u9645\u4e0a\uff0cfiltered\u5b57\u6bb5\u8868\u793a\u5b58\u50a8\u5f15\u64ce\u8fd4\u56de\u7684\u6570\u636e\u5728\u670d\u52a1\u5c42\u8fc7\u6ee4\u540e\uff0c\u6ee1\u8db3\u67e5\u8be2\u6761\u4ef6\u7684\u8bb0\u5f55\u6570\u91cf\u6240\u5360\u7684\u767e\u5206\u6bd4\u3002\u56e0\u6b64\uff0c\u503c\u8d8a\u5927\u8868\u660e\u8fc7\u6ee4\u6389\u7684\u8d8a\u5c11\uff0c\u53ef\u4ee5\u88ab\u89c6\u4e3a\u201c\u66f4\u597d\u201d\u3002 \u7136\u800c\uff0c\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cfiltered\u503c\u8f83\u5c0f\u5e76\u4e0d\u80fd\u76f4\u63a5\u8bf4\u660e\u7d22\u5f15\u8d28\u91cf\u6216\u5f15\u64ce\u6548\u7387\u4e0d\u9ad8\u3002\u56e0\u4e3a\u8fc7\u6ee4\u6389\u7684\u8bb0\u5f55\u6570\u91cf\u4e5f\u53d6\u51b3\u4e8e\u67e5\u8be2\u6761\u4ef6\u672c\u8eab\u3002\u4f8b\u5982\uff0c\u5f53\u67e5\u8be2\u6761\u4ef6\u975e\u5e38\u4e25\u683c\u65f6\uff0c\u5373\u4f7f\u7d22\u5f15\u547d\u4e2d\u826f\u597d\uff0c\u4e5f\u4f1a\u5bfc\u81f4filtered\u503c\u8f83\u5c0f\u3002 \u56e0\u6b64\uff0cfiltered\u5b57\u6bb5\u7684\u53c2\u8003\u4ef7\u503c\u4e0d\u5927\u3002\u5224\u65ad\u67e5\u8be2\u6027\u80fd\u4f18\u52a3\u65f6\uff0c\u9700\u8981\u7efc\u5408\u8003\u8651\u5176\u4ed6EXPLAIN\u5b57\u6bb5\uff0c\u4f8b\u5982rows\u3001type\u7b49\uff0c\u624d\u80fd\u5f97\u51fa\u51c6\u786e\u7ed3\u8bba\u3002 \u4ee5\u4e0a\u5c31\u662fMySQL EXPLAIN\u4e2d\u7684filtered\u5b57\u6bb5\uff1a\u503c\u8d8a\u5927\u5c31\u4e00\u5b9a\u8d8a\u597d\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-7124","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/7124","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=7124"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/7124\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=7124"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=7124"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=7124"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}