{"id":4736,"date":"2024-05-28T01:33:37","date_gmt":"2024-05-27T17:33:37","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/index.php\/%e9%9d%a2%e8%af%95\/%e9%9d%a2%e8%af%95%e5%ae%98%ef%bc%9a%e7%b4%a2%e5%bc%95%e4%b8%80%e8%88%ac%e6%98%af%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e7%9a%84%ef%bc%9fmysql-innodb%e5%bc%95%e6%93%8e%e7%9a%84%e7%b4%a2%e5%bc%95\/"},"modified":"2024-05-28T01:33:37","modified_gmt":"2024-05-27T17:33:37","slug":"%e9%9d%a2%e8%af%95%e5%ae%98%ef%bc%9a%e7%b4%a2%e5%bc%95%e4%b8%80%e8%88%ac%e6%98%af%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e7%9a%84%ef%bc%9fmysql-innodb%e5%bc%95%e6%93%8e%e7%9a%84%e7%b4%a2%e5%bc%95","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/%e9%9d%a2%e8%af%95\/%e9%9d%a2%e8%af%95%e5%ae%98%ef%bc%9a%e7%b4%a2%e5%bc%95%e4%b8%80%e8%88%ac%e6%98%af%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e7%9a%84%ef%bc%9fmysql-innodb%e5%bc%95%e6%93%8e%e7%9a%84%e7%b4%a2%e5%bc%95\/","title":{"rendered":"\u9762\u8bd5\u5b98\uff1a\u7d22\u5f15\u4e00\u822c\u662f\u5982\u4f55\u5b9e\u73b0\u7684\uff1fMySQL InnoDB\u5f15\u64ce\u7684\u7d22\u5f15\u91c7\u7528\u7684\u662f\u54ea\u79cd\u6570\u636e\u7ed3\u6784\uff1f\u539f\u56e0\u662f\u4ec0\u4e48\u5462\uff1f"},"content":{"rendered":"
\n

\u7d22\u5f15\u548c\u4e8b\u52a1\u662f\u9762\u8bd5\u5b98\u5927\u6982\u7387\u4e0d\u4f1a\u7ed5\u5f00\u7684MySQL\u9762\u8bd5\u9898\u76ee\uff0c\u4e5f\u662f\u540e\u7aef\u5f00\u53d1\u5de5\u7a0b\u5e08\u5fc5\u987b\u638c\u63e1\u7684\u77e5\u8bc6\u70b9\uff0c\u5c24\u5176\u662f\u7d22\u5f15\uff0c\u5728\u65e5\u5e38\u5de5\u4f5c\u4e2d\u4f1a\u7ecf\u5e38\u63a5\u89e6\u5230\uff0c\u6bd4\u5982\u67d0\u4e00\u4e2aSQL\u67e5\u8be2\u6bd4\u8f83\u6162\uff0c\u5206\u6790\u5b8c\u539f\u56e0\u4e4b\u540e\uff0c\u4f60\u53ef\u80fd\u5c31\u4f1a\u8bf4\u201c\u7ed9\u67d0\u4e2a\u5b57\u6bb5\u52a0\u4e2a\u7d22\u5f15\u5427\u201d\u4e4b\u7c7b\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/span><\/p>\n

\n

\n

\u9762\u8bd5\u5b98\uff1a\u7d22\u5f15\u662f\u4ec0\u4e48\uff1f\u4e00\u822c\u53c8\u662f\u5982\u4f55\u5b9e\u73b0\u7684\u5462\uff1f<\/span><\/p>\n

<\/span><\/p>\n

\u7d22\u5f15\u662f\u4e3a\u4e86\u63d0\u9ad8\u6570\u636e\u67e5\u8be2\u7684\u6548\u7387\uff0c\u5c31\u50cf\u4e66\u7684\u76ee\u5f55\u4e00\u6837\u3002\u4e00\u672c500\u9875\u7684\u4e66\uff0c\u5982\u679c\u4f60\u60f3\u5feb\u901f\u627e\u5230\u5176\u4e2d\u7684\u67d0\u4e00\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5728\u4e0d\u501f\u52a9\u76ee\u5f55\u7684\u60c5\u51b5\u4e0b\uff0c\u5f88\u96be\u5feb\u901f\u627e\u5230\u76f8\u5173\u5185\u5bb9\u3002\u540c\u6837\uff0c\u5bf9\u4e8e\u6570\u636e\u5e93\u7684\u8868\u800c\u8a00\uff0c\u7d22\u5f15\u5176\u5b9e\u5c31\u662f\u5b83\u7684\u201c\u76ee\u5f55\u201d\u3002<\/span><\/p>\n

\u6570\u636e\u5e93\u7d22\u5f15\u662f\u6570\u636e\u5e93\u7cfb\u7edf\u4e2d\u63d0\u9ad8\u6570\u636e\u68c0\u7d22\u6548\u7387\u7684\u5173\u952e\u673a\u5236\uff0c\u901a\u8fc7\u7279\u5b9a\u7684\u6570\u636e\u7ed3\u6784\u6765\u7ec4\u7ec7\u6570\u636e\uff0c\u4f7f\u5f97\u67e5\u8be2\u64cd\u4f5c\u80fd\u66f4\u5feb\u5b9a\u4f4d\u5230\u8981\u67e5\u627e\u7684\u8bb0\u5f55\u3002<\/span><\/p>\n

\n

\u7d22\u5f15\u7684\u5b9e\u73b0\u4f9d\u8d56\u4e8e\u9ad8\u6548\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5e38\u89c1\u7684\u6709\u4ee5\u4e0b\u51e0\u79cd\uff1a<\/span><\/p>\n

\n

1\u3001Hash<\/span><\/p>\n

<\/span><\/p>\n

\u5229\u7528\u54c8\u5e0c\u51fd\u6570\u5c06\u952e\u8f6c\u6362\u4e3a\u56fa\u5b9a\u957f\u5ea6\u7684\u54c8\u5e0c\u7801\uff0c\u7136\u540e\u901a\u8fc7\u54c8\u5e0c\u7801\u76f4\u63a5\u5b9a\u4f4d\u8bb0\u5f55\uff0c\u9002\u7528\u4e8e\u7b49\u503c\u67e5\u8be2\uff0c\u67e5\u8be2\u901f\u5ea6\u5feb\uff0c\u4f46\u4e0d\u652f\u6301\u8303\u56f4\u67e5\u8be2\u3002<\/span><\/p>\n

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\n

2\u3001\u6709\u5e8f\u6570\u7ec4<\/span><\/p>\n

<\/span><\/p>\n

\u6709\u5e8f\u6570\u7ec4\u5219\u5728\u7b49\u503c\u67e5\u8be2\u548c\u8303\u56f4\u67e5\u8be2\u65b9\u9762\u8868\u73b0\u4f18\u5f02\uff0c\u7b49\u503c\u67e5\u8be2\u4f7f\u7528\u4e8c\u5206\u6cd5\u5c31\u53ef\u4ee5\u5feb\u901f\u5f97\u5230\uff0c\u8fd9\u4e2a\u65f6\u95f4\u590d\u6742\u5ea6\u662fO(log(N))\uff1b\u56e0\u4e3a\u662f\u6709\u5e8f\u6570\u7ec4\u8303\u56f4\u67e5\u8be2\u7684\u6548\u7387\u81ea\u4e0d\u5fc5\u8bf4\u3002<\/span><\/p>\n

\u4f46\u662f\uff0c\u5728\u66f4\u65b0\u6570\u636e\u7684\u65f6\u5019\u5c31\u5f88\u9ebb\u70e6\uff0c\u4f60\u5f80\u4e2d\u95f4\u63d2\u5165\u4e00\u4e2a\u8bb0\u5f55\u5c31\u5fc5\u987b\u5f97\u632a\u52a8\u540e\u9762\u6240\u6709\u7684\u8bb0\u5f55\uff0c\u6210\u672c\u592a\u9ad8\u3002\u6240\u4ee5\uff0c\u6709\u5e8f\u6570\u7ec4\u7d22\u5f15\u53ea\u9002\u7528\u4e8e\u9759\u6001\u5b58\u50a8\u5f15\u64ce\uff0c\u5b58\u50a8\u4e0d\u4f1a\u4fee\u6539\u7684\u6570\u636e\u3002<\/span><\/p>\n

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3\u3001\u4e8c\u53c9\u641c\u7d22\u6811<\/span><\/p>\n

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<\/span><\/p>\n

4\u3001BTree\uff08\u5e73\u8861\u591a\u8def\u641c\u7d22\u6811\uff09<\/span><\/p>\n

<\/span><\/p>\n

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<\/span><\/p>\n

\n

5\u3001B+Tree<\/span><\/p>\n

<\/span><\/p>\n

B+Tree\u662fB Tree\u7684\u4e00\u79cd\u53d8\u4f53\uff0cB+Tree \u53ea\u5728\u53f6\u5b50\u8282\u70b9\u5b58\u50a8\u6570\u636e<\/span>\uff0c\u800c B \u6811\u7684\u975e\u53f6\u5b50\u8282\u70b9\u4e5f\u8981\u5b58\u50a8\u6570\u636e\u3002\u5b83\u7684\u6240\u6709\u53f6\u5b50\u8282\u70b9\u5305\u542b\u4e86\u5168\u90e8\u6570\u636e\u8bb0\u5f55\u7684\u6307\u9488\uff08\u6216\u76f4\u63a5\u5b58\u50a8\u6570\u636e\uff09\uff0c\u5e76\u4e14\u53f6\u5b50\u8282\u70b9\u95f4\u901a\u8fc7\u53cc\u5411\u6307\u9488\u76f8\u8fde\uff0c\u5f62\u6210\u4e86\u4e00\u4e2a\u53cc\u5411\u94fe\u8868\uff0c\u7279\u522b\u9002\u5408\u8303\u56f4\u67e5\u8be2\u548c\u5168\u8868\u626b\u63cf<\/span>\u3002\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/span><\/p>\n

<\/span><\/p>\n

<\/span><\/p>\n

<\/span><\/p>\n

\u9762\u8bd5\u5b98\uff1aMySQL InnoDB\u5f15\u64ce\u7684\u7d22\u5f15\u91c7\u7528\u7684\u662f\u54ea\u79cd\u6570\u636e\u7ed3\u6784\uff1f\u539f\u56e0\u662f\u4ec0\u4e48\uff1f<\/span><\/p>\n

<\/span><\/p>\n

MySQL\u7684InnoDB\u5b58\u50a8\u5f15\u64ce\u662f\u5176\u9ed8\u8ba4\u7684\u4e8b\u52a1\u578b\u5b58\u50a8\u5f15\u64ce\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u9700\u8981\u9ad8\u5e76\u53d1\u548c\u6570\u636e\u4e00\u81f4\u6027\u7684\u573a\u666f\u3002InnoDB\u5bf9\u4e8e\u7d22\u5f15\u7684\u5b9e\u73b0\uff0c\u4e3b\u8981\u91c7\u7528\u4e86<\/span>B+Tree\u6570\u636e\u7ed3\u6784<\/span>\uff0c\u539f\u56e0\u5982\u4e0b\uff1a<\/span><\/p>\n

<\/span><\/p>\n

1\u3001\u9002\u5e94\u78c1\u76d8I\/O\u7279\u6027<\/span><\/p>\n

<\/span><\/p>\n

B+Tree\u7ed3\u6784\u80fd\u591f\u5f88\u597d\u5730\u9002\u914d\u78c1\u76d8\u8bfb\u53d6\u7684\u5757\u64cd\u4f5c\u7279\u6027\u3002\u7531\u4e8e\u78c1\u76d8I\/O\u901a\u5e38\u662f\u6309\u5757\u8fdb\u884c\u7684\uff0cB+Tree\u7684\u6bcf\u4e2a\u8282\u70b9\u53ef\u4ee5\u5b58\u653e\u591a\u4e2a\u952e\u503c\u5bf9\uff0c\u8fd9\u6837\u6bcf\u6b21\u78c1\u76d8I\/O\u90fd\u53ef\u4ee5\u8bfb\u53d6\u66f4\u591a\u7684\u6570\u636e\uff0c\u51cf\u5c11\u78c1\u76d8\u8bbf\u95ee\u6b21\u6570\uff0c\u63d0\u9ad8\u6548\u7387\u3002<\/span><\/p>\n

<\/span><\/p>\n

2\u3001\u652f\u6301\u8303\u56f4\u67e5\u8be2\u548c\u6392\u5e8f<\/span><\/p>\n

<\/span><\/p>\n

B+Tree\u7684\u6240\u6709\u53f6\u5b50\u8282\u70b9\u901a\u8fc7\u6307\u9488\u76f8\u8fde\uff0c\u5f62\u6210\u4e00\u4e2a\u6709\u5e8f\u94fe\u8868\uff0c\u8fd9\u4f7f\u5f97\u8303\u56f4\u67e5\u8be2\u548c\u6570\u636e\u6392\u5e8f\u53d8\u5f97\u975e\u5e38\u9ad8\u6548\uff0c\u65e0\u9700\u989d\u5916\u7684\u6392\u5e8f\u64cd\u4f5c\u3002<\/span><\/p>\n

<\/span><\/p>\n

3\u3001\u805a\u7c07\u7d22\u5f15<\/span><\/p>\n

<\/span><\/p>\n

InnoDB\u8868\u662f\u57fa\u4e8e\u805a\u7c07\u7d22\u5f15\uff08Clustered Index\uff09\u6784\u5efa\u7684\uff0c\u5373\u6570\u636e\u884c\u4e0e\u4e3b\u952e\u7d22\u5f15\u5b58\u653e\u5728\u4e00\u8d77\uff0c\u5982\u679c\u4e3b\u952e\u88ab\u5b9a\u4e49\u4e3a\u7d22\u5f15\uff0c\u5219B+Tree\u7684\u53f6\u5b50\u8282\u70b9\u76f4\u63a5\u5305\u542b\u8868\u6570\u636e\uff0c\u8fdb\u4e00\u6b65\u63d0\u9ad8\u4e86\u6570\u636e\u8bbf\u95ee\u901f\u5ea6\u3002<\/span><\/p>\n

<\/span><\/p>\n

4\u3001\u4e8c\u7ea7\u7d22\u5f15\u652f\u6301<\/span><\/p>\n

<\/span><\/p>\n

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<\/span><\/p>\n

\u7efc\u4e0a\u6240\u8ff0\uff0cMySQL InnoDB\u5f15\u64ce\u91c7\u7528B+Tree\u4f5c\u4e3a\u7d22\u5f15\u7684\u6570\u636e\u7ed3\u6784\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u5b83\u5728\u78c1\u76d8I\/O\u6548\u7387\u3001\u8303\u56f4\u67e5\u8be2\u652f\u6301\u3001\u4ee5\u53ca\u6570\u636e\u5b58\u50a8\u5e03\u5c40\u4e0a\u7684\u4f18\u52bf\uff0c\u8fd9\u4e9b\u7279\u6027\u5171\u540c\u4fdd\u8bc1\u4e86InnoDB\u5f15\u64ce\u5728\u5904\u7406\u5927\u91cf\u5e76\u53d1\u4e8b\u52a1\u548c\u590d\u6742\u67e5\u8be2\u65f6\u7684\u9ad8\u6027\u80fd\u3002<\/span><\/p>\n

<\/span><\/p>\n

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<\/span><\/p>\n

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<\/span><\/p>\n

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[1]<\/span>https:\/\/juejin.cn\/post\/6904293886626103309<\/span><\/p>\n<\/article>\n

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\u70b9\u51fb\u5173\u6ce8\u6211\uff0c\u4ea4\u4e2a\u670b\u53cb\u5427\uff01<\/span><\/span><\/section>\n
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