{"id":64185,"date":"2022-04-12T18:00:28","date_gmt":"2022-04-12T10:00:28","guid":{"rendered":"https:\/\/www.growthhk.cn\/?p=64185"},"modified":"2022-04-12T18:00:34","modified_gmt":"2022-04-12T10:00:34","slug":"%e8%85%be%e8%ae%af%e4%bd%99%e6%a0%b9%e8%8c%82%ef%bc%9a%e5%9f%ba%e4%ba%8eiceberg%e7%9a%84%e5%a4%a7%e8%a7%84%e6%a8%a1%e6%95%b0%e6%8d%ae%e5%88%86%e6%9e%90%e4%bc%98%e5%8c%96%e5%8a%a0%e9%80%9f%e5%ae%9e","status":"publish","type":"post","link":"https:\/\/www.growthhk.cn\/cgo\/product\/64185.html","title":{"rendered":"\u817e\u8baf\u4f59\u6839\u8302\uff1a\u57fa\u4e8eIceberg\u7684\u5927\u89c4\u6a21\u6570\u636e\u5206\u6790\u4f18\u5316\u52a0\u901f\u5b9e\u8df5\uff5cDataFunTalk"},"content":{"rendered":"\n

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\u672a\u6765\u89c4\u5212<\/li><\/ul>\n\n\n\n

01<\/strong><\/p>\n\n\n\n

\u67e5\u8be2\u5206\u6790\u7684IO\u6548\u7387<\/strong><\/p>\n\n\n\n

1. \u4e00\u4e2a\u67e5\u8be2\u4f8b\u5b50<\/strong><\/p>\n\n\n\n

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\u6848\u4f8bSQL\uff1a<\/p>\n\n\n\n

SELECT count(*)\nFROM employee\nWHERE first_name like \u2018Tho%\u2019AND last_name like\u2018Frank%\u2019AND birthplace=\u2018newyork\u2019;<\/code><\/pre>\n\n\n\n\u4ee5\u4e0a\u7684SQL\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u67e5\u8be2\u8bed\u53e5\uff0c\u5176\u4e2dbirthplace\u5b57\u6bb5\u662f\u5206\u533a\u5b57\u6bb5\u3002<\/p>\n\n\n\n
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<\/figure>\n\n\n\n\u5206\u533a\u88c1\u526a\uff1a\u6839\u636e\u5206\u533a\u5b57\u6bb5birthplace\u5b9a\u4f4d\u5177\u4f53\u9700\u8981\u626b\u63cf\u7684\u6587\u4ef6\u4f4d\u7f6e\uff0c\u8fc7\u6ee4\u6389\u5927\u91cf\u65e0\u6548\u6587\u4ef6\u3002<\/li>
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Row Group\u8fc7\u6ee4\uff1a\u6839\u636eparquet\u6587\u4ef6\u5185\u90e8\u5bf9\u6570\u636e\u7684\u7edf\u8ba1\u4fe1\u606f\uff0c\u53ef\u4ee5\u5feb\u901f\u8fc7\u6ee4\u6389parquet\u6587\u4ef6\u5757\u4e2d\u4e0d\u5728\u67e5\u8be2\u8303\u56f4\u5185\u7684Row Group\u3002<\/li><\/ul>\n\n\n\n\u5c31\u8fd9\u6837\uff0c\u7ecf\u8fc7\u4e09\u5c42IO\u7684\u7b5b\u9009\u8fc7\u6ee4\uff0c\u6700\u7ec8\u53ea\u9700\u8981\u626b\u63cf\u5f88\u5c11\u7684\u6570\u636e\u6587\u4ef6\u5c31\u53ef\u4ee5\u5b8c\u6210\u6b64\u6b21\u7684\u67e5\u8be2\uff0c\u63d0\u9ad8\u603b\u4f53\u67e5\u8be2\u6548\u7387\u3002<\/p>\n\n\n\n
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2. \u6f5c\u5728\u7684\u95ee\u9898<\/strong><\/p>\n\n\n\n
\u9996\u5148\uff0cmin-max\u7684\u51fa\u73b0\u9700\u8981\u57fa\u4e8e\u6570\u636e\u7ecf\u8fc7\u6392\u5e8f\u7684\u57fa\u7840\u4e0a\uff0c\u5982\u679c\u5b57\u6bb5\u6ca1\u6709\u7ecf\u8fc7\u6392\u5e8f\uff0c\u90a3\u4e48\u5206\u6563\u5728\u6bcf\u4e00\u4e2a\u6570\u636e\u6587\u4ef6\u4e2d\u7684\u5b57\u6bb5\u662f\u65e0\u5e8f\u7684\uff0cmin-max\u5176\u5b9e\u4e5f\u5c31\u5931\u53bb\u4e86\u8fc7\u6ee4\u7684\u610f\u4e49\u3002<\/p>\n\n\n\n
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<\/figure>\n\n\n\n02<\/strong><\/p>\n\n\n\n
\u6570\u636e\u7ec4\u7ec7\u4f18\u5316\u8bbe\u8ba1<\/strong><\/p>\n\n\n\n
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1. \u7a7a\u95f4\u586b\u5145\u66f2\u7ebf\uff08Space-filling curve\uff09<\/strong><\/p>\n\n\n\n
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<\/figure>\n\n\n\n\u6211\u4eec\u4e0d\u7528\u592a\u7406\u89e3\u8fd9\u4e2a\u66f2\u7ebf\u6570\u5b66\u4e0a\u7684\u610f\u4e49\uff0c\u91cd\u70b9\u662f\u5b83\u4e3a\u6211\u4eec\u89e3\u51b3\u95ee\u9898\u5e26\u6765\u7684\u601d\u8def\uff1a\u964d\u7ef4\u3002\u89e3\u51b3\u95ee\u9898\u5176\u5b9e\u5c31\u662f\u60f3\u8981\u5229\u7528\u7a7a\u95f4\u586b\u5145\u66f2\u7ebf\uff0c\u5bf9\u591a\u7ef4\u6570\u636e\uff08\u4f8b\u5982\u4e00\u5f20\u8868\u4e2d\u7684\u591a\u5217\uff09\u8fdb\u884c\u964d\u7ef4\u5904\u7406\uff0c\u4ee5\u63d0\u5347\u76f8\u5173\u6570\u636e\u7684\u805a\u96c6\u6548\u679c\u4ee5\u53ca\u76f8\u5e94\u7684\u6570\u636emin-max\u7684\u4f7f\u7528\u6548\u7387\u3002<\/p>\n\n\n\n
2. \u4f8b\u5b50\uff1a\u5730\u7406\u4f4d\u7f6e\u7f16\u7801<\/strong><\/p>\n\n\n\n
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<\/figure>\n\n\n\n\u5730\u7406\u4f4d\u7f6e\u7f16\u7801\uff08Geohash\uff09\u662f\u4e00\u79cd\u5206\u7ea7\u7684\u6570\u636e\u7ed3\u6784\uff0c\u628a\u7a7a\u95f4\u5212\u5206\u4e3a\u7f51\u683c\u3002\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u6211\u4eec\u8981\u641c\u7d22\u533a\u57df\u4e3a\u4e8c\u7ef4\uff08x\uff0cy\uff09\u7684\uff0c\u5176\u4e2dx\u7684\u8303\u56f4\u662f[2,3]\uff0c y\u7684\u8303\u56f4\u662f [4,5]\uff0c\u4ece\u56fe\u4e2d\u4e5f\u80fd\u770b\u51fa\u5b83\u7684\u603b\u626b\u63cf\u8303\u56f4\u662f\u4e00\u4e2a\u6b63\u65b9\u5f62\u7684\u7f51\u683c\u3002<\/p>\n\n\n\n
\u90a3\u600e\u4e48\u6837\u7528\u5730\u7406\u4f4d\u7f6e\u7f16\u7801\u5c06\u5176\u8303\u56f4\u8f6c\u5316\u6210\u4e00\u7ef4\uff08z\uff09\u7684\u5462\uff1f<\/p>\n\n\n\n
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\u4e0a\u754c\uff1ax=3\uff0c y=5<\/li>
\u4e0b\u754c\uff1ax=2\uff0c y=4<\/li>
\u8f6c\u5316\u4e00\u7ef4\u5730\u5740\uff0c\u6839\u636eGeohash\u7684\u89c4\u5219\uff0c\u5c06\u5076\u6570\u4f4d\u653e\u7ecf\u5ea6\uff0c\u5947\u6570\u4f4d\u653e\u5728\u7eac\u5ea6\uff0c\u5bf9\u4e0a\u4e0b\u754c\u7684\u503c\u8fdb\u884c\u9519\u4f4d\u7f16\u7801\uff08\u5373\u8f6c\u6362\u4e8c\u8fdb\u5236\uff09\uff0c\u6b64\u65f6\uff1a<\/li>
\u4e0b\u754c\uff1a100100<\/li>
\u4e0a\u754c\uff1a100111<\/li>
\u5373\u8f6c\u4e3a\u4e86\u4e00\u7ef4\u7684\u641c\u7d22\u7a7a\u95f4\uff1a[100100,100111]\uff0c\u5176\u4e2d\u5305\u542b\u4e864\u4e2a\u503c\uff0c\u5206\u522b\u4e3a100100\uff0c100101\uff0c100110\uff0c100111\uff0c\u4ece\u4e0a\u56fe\u53ef\u4ee5\u770b\u51fa\uff0c\u8fd9\u56db\u4e2a\u503c\u6b63\u597d\u5c31\u662f\u5728\u4e8c\u7ef4\u7684\u56db\u65b9\u683c\u4e2d\u7684\u56db\u4e2a\u503c\uff0c\u964d\u7ef4\u540e\u7684\u542b\u4e49\u662f\u4e0d\u53d8\u7684\u3002<\/li><\/ul>\n\n\n\n\u5f53\u7136\uff0c\u964d\u7ef4\u4e0d\u662f\u8fd9\u4e48\u7b80\u5355\u7684\uff0c\u5f88\u5bb9\u6613\u80fd\u627e\u5230\u53cd\u4f8b\uff1a<\/p>\n\n\n\n
<\/figure>\n\n\n\n\u5982\u56fe\u6240\u793a\uff0c\u5f53\u8303\u56f4\u5728x\u4e3a[1,3]\uff0cy\u4e3a[3,4]\u65f6\uff0c\u8ba1\u7b97\u51fa\u7684\u4e00\u7ef4\u5730\u5740\u7a7a\u95f4\u5b9e\u9645\u5185\u5bb9\u5c31\u8fdc\u8d85\u8fc7\u4e8c\u7ef4\u8868\u73b0\u7684\u7a7a\u95f4\uff0c\u4f8b\u5982\u4e0a\u56fe\u4e2d\u7ea2\u8272\u90e8\u5206\uff0c\u8fd9\u79cd\u5728\u964d\u7ef4\u540e\u7684\u8303\u56f4\u4e2d\u4f46\u4e0d\u5728\u964d\u7ef4\u524d\u7684\u8303\u56f4\u4e2d\u7684\u8fd9\u90e8\u5206\uff0c\u4e00\u822c\u79f0\u4e3afault\u6570\u636e\u3002\u8fd9\u6837\u7684fault\u6570\u636e\u4f1a\u589e\u52a0\u641c\u7d22\u7684\u6210\u672c\uff0c\u964d\u4f4e\u641c\u7d22\u7684\u6548\u7387\uff0c\u5f53\u7136\u5728\u540e\u9762\u6211\u5c06\u7ed9\u5927\u5bb6\u5206\u4eab\u6211\u4eec\u662f\u5982\u4f55\u5728Apache Iceberg\u4e2d\u907f\u514d\u8fd9\u6837fault\u6570\u636e\u51fa\u73b0\u7684\u3002<\/p>\n\n\n\n
3. ZOrder\u7b97\u6cd5\u7684\u8bde\u751f\u53ca\u5176\u610f\u4e49<\/strong><\/p>\n\n\n\n
\u501f\u9274\u4e86\u4e0a\u8ff0\u7684\u6982\u5ff5\u548c\u601d\u8def\uff0c\u4e3a\u4e86\u89e3\u51b3\u591a\u5217\u6392\u5e8f\u5e26\u6765\u7684\u67e5\u8be2\u6548\u7387\u7684\u964d\u4f4e\u4ee5\u53camin-max\u7684\u65e0\u6548\u8fc7\u6ee4\u95ee\u9898\uff0c\u817e\u8baf<\/a><\/span>Iceberg\u5b9e\u73b0\u4e86\u57fa\u4e8eZOrder\u7b97\u6cd5\u7684\u6570\u636e\u7ec4\u7ec7\u4f18\u5316\uff0c\u5e76\u63d0\u4f9b\u4e86\u539f\u751f\u7684OPTIMIZE\u8bed\u6cd5\u3002<\/p>\n\n\n\n
\u81f3\u4e8e\u4e0a\u8ff0\u7684fault\u6570\u636e\u95ee\u9898\uff0cApache Iceberg\u5bf9\u6587\u4ef6\u4e2d\u7684\u6570\u636e\u63d0\u4f9b\u4e86\u8be6\u7ec6\u7684\u7edf\u8ba1\u4fe1\u606f\uff0c\u5c31\u4f8b\u5982\u6211\u4eec\u4e00\u76f4\u63d0\u5230\u7684min-max\uff0c\u5c31\u80fd\u591f\u5728\u964d\u7ef4\u540e\u5bf9\u6570\u636e\u518d\u6b21\u7cbe\u51c6\u8fc7\u6ee4\uff0c\u907f\u514dfault\u6570\u636e\u5e26\u6765\u7684\u5371\u5bb3\u3002<\/p>\n\n\n\n
<\/figure>\n\n\n\n\u6570\u636e\u7ec4\u7ec7\u4f18\u5316\u80fd\u5e26\u6765\u4ec0\u4e48\uff1f<\/p>\n\n\n\n
\u5982\u4e0a\u56fe\u6240\u793a\uff0c\u7eff\u8272\u7684\u70b9\u4e3a\u6211\u4eec\u6b64\u6b21\u67e5\u8be2\u7684\u76ee\u6807\u6570\u636e\uff0c\u7ea2\u8272\u7684\u70b9\u4e3a\u5176\u4ed6\u6570\u636e\u3002\u4eceSnapshot N\u5f00\u59cb\uff0c\u5982\u679c\u6211\u4eec\u4e0d\u505a\u7ec4\u7ec7\u4f18\u5316\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u6570\u636e\u662f\u5206\u6563\u57281000\u4e2a\u6587\u4ef6\u4e2d\u7684\uff0c\u5206\u5e03\u5f88\u5747\u5300\uff0c\u5bfc\u81f4\u67e5\u8be2\u7684\u65f6\u5019\u9700\u8981\u626b\u63cf\u5927\u91cf\u6587\u4ef6\u3002<\/p>\n\n\n\n
\u5728\u505aOPTIMIZE\u4f18\u5316\u540e\uff0c\u4f8b\u5982Snapshot N+1\uff0c\u6211\u4eec\u4f1a\u5c06\u6570\u636e\u505a\u805a\u5408\u548c\u91cd\u65b0\u6392\u5217\uff0c\u5c06\u6570\u636e\u6574\u5408\u6210\u4e3a4\u4e2a\u6587\u4ef6\uff0c\u5e76\u4e14\u6570\u636e\u57fa\u672c\u5206\u5e03\u5728\u5c11\u91cf\u51e0\u4e2a\u6587\u4ef6\u4e2d\uff0c\u8fd9\u6837\u7684\u60c5\u51b5\u4e0b\u626b\u63cf\u7684\u6587\u4ef6\u5c31\u5927\u5927\u964d\u4f4e\u4e86\u3002<\/p>\n\n\n\n
\u800c\u5728\u540e\u7eed\uff0c\u56e0\u4e3a\u4e0d\u65ad\u6709\u6570\u636e\u5199\u5165\uff0c\u5f62\u6210\u65b0\u7684\u5c0f\u6587\u4ef6\uff0c\u90a3\u7ee7\u7eed\u4f7f\u7528\u589e\u91cf\u7684OPTIMIZE\u8bed\u6cd5\uff0c\u53ef\u4ee5\u4e0d\u65ad\u5bf9\u589e\u91cf\u7684\u5c0f\u6587\u4ef6\u8fdb\u884c\u805a\u5408\u6574\u7406\uff0c\u5c31\u5982Snapshot N+2\u548cSnapshot N+3\u3002<\/p>\n\n\n\n
\u8fd9\u6837\u4f1a\u5e26\u6765\u4e24\u4e2a\u597d\u5904\uff1a<\/p>\n\n\n\n
\u51cf\u5c11\u5c0f\u6587\u4ef6\uff0c\u63d0\u5347\u5143\u6570\u636e\u8d28\u91cf\u548cIO\u6548\u7387\uff1b<\/li>
IO\u4f18\u5316\uff0c\u63d0\u5347\u67e5\u8be2\u6548\u7387\u3002<\/li><\/ul>\n\n\n\n03<\/strong><\/p>\n\n\n\n
\u6280\u672f\u5b9e\u73b0\u5256\u6790<\/strong><\/p>\n\n\n\n
\u63a5\u4e0b\u6765\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u4e00\u4e0bOPTIMIZE\u662f\u5982\u4f55\u5b9e\u73b0\u7ec4\u7ec7\u4f18\u5316\u7684\u3002<\/p>\n\n\n\n
\u793a\u4f8bSQL\u8bed\u6cd5\uff1a<\/p>\n\n\n\n
OPTIMIZE TABLE employee ZORDER BY first_name, last_name<\/code><\/pre>\n\n\n\n1. \u7b5b\u9009\u5019\u9009\u6587\u4ef6<\/strong><\/p>\n\n\n\n
\u9996\u5148\uff0c\u4f7f\u7528OPTIMIZE\u65f6\u9700\u8981\u9650\u5b9a\u8fdb\u884c\u7ec4\u7ec7\u4f18\u5316\u7684\u662f\u54ea\u4e9b\u6587\u4ef6\u3002\u6587\u4ef6\u9009\u62e9\u6709\u4e24\u4e2a\u7b5b\u9009\u539f\u5219\uff1a<\/p>\n\n\n\n
\u53ef\u4ee5\u9009\u62e9\u5168\u8868\u6216\u8005\u5177\u4f53\u7684\u5206\u533a\u6587\u4ef6\u5939\u8fdb\u884c\u7ec4\u7ec7\u4f18\u5316\uff1b<\/p>\n\n\n\n
\u652f\u6301\u591a\u79cd\u7b56\u7565\uff0c\u5982\u4e0a\u9762\u63cf\u8ff0\u7684\u5168\u91cf\u4f18\u5316\u548c\u589e\u91cf\u4f18\u5316\u3002<\/p>\n\n\n\n
2. \u6839\u636e\u591a\u7ef4\u5217\u503c\u751f\u6210z\u5730\u5740<\/strong><\/p>\n\n\n\n
\u4f8b\u5982\uff0c\u67d0\u4e00\u884c\u6570\u636e\u4e2d\uff0cfirst_name\u662fThomas\uff0clast_name\u662fMore<\/p>\n\n\n\n
\u521d\u59cb\u6570\u636e\uff1aThomas, More<\/li>
\u6570\u5b57\u5316\uff1a68, 102<\/li>
\u6570\u5b57\u5316\u7684\u8ba1\u7b97\u65b9\u5f0f\uff1a\u5bf9\u8be5\u5217\u4e2d\u7684\u6240\u6709\u6570\u636e\u8fdb\u884c\u91c7\u6837\u7edf\u8ba1\uff0c\u800c\u8fd9\u4e2a\u6570\u636e\u5728\u91c7\u6837\u533a\u95f4\u4e2d\u7684\u4f4d\u7f6e\u7684\u4e0b\u6807\uff0c\u5373\u4e3a\u6570\u5b57\u5316\u5bf9\u5e94\u7684\u503c\u3002<\/li>
\u4f7f\u75282\u5b57\u8282bits\u8868\u793a\uff1a0000000001000100\uff0c00000000 01100110<\/li>
\u73b0\u5728\u5206\u4eab\u7684\u662f2\u5b57\u8282\uff0c\u5b9e\u9645\u5b9e\u73b0\u65f6\u5f80\u5f80\u91c7\u7528\u7684\u662f4\u5b57\u8282\u62168\u5b57\u8282\u8fdb\u884c\u5904\u7406\u3002<\/li>
\u4ea4\u9519\u4f4d\uff08\u8f6c\u5316\u4e00\u7ef4\uff09\uff1a00000000 00000000 00110100 00110100<\/li>
\u8fd9\u4e2a\u503c\u5c31\u662fz\u5730\u5740\uff0c\u4e5f\u5c31\u662fzOrderAddress\u3002<\/li><\/ul>\n\n\n\n3. \u6839\u636ez\u5730\u5740\u8fdb\u884cRange\u91cd\u5206\u533a<\/strong><\/p>\n\n\n\n
\u6839\u636e\u8ba1\u7b97\u51fa\u6765\u7684zOrderAddress\u8fdb\u884c\u91cd\u65b0\u5206\u533a\u7684\u64cd\u4f5c\uff0c\u5408\u5e76\u5c0f\u6587\u4ef6\uff0c\u4f18\u5316\u6570\u636e\u7ec4\u7ec7\uff0c\u8fd9\u4e2a\u64cd\u4f5c\u7b49\u4ef7\u4e8e<\/p>\n\n\n\n
Dataset.repartitionByRange(ZOrderAddress)<\/p>\n\n\n\n
4. \u4e8b\u52a1\u5199\u56de\u5b58\u50a8<\/strong><\/p>\n\n\n\n
\u901a\u8fc7Copy on Write\u7684\u65b9\u5f0f\u5199\u56de\u8868\u4e2d\uff0c\u751f\u6210\u65b0\u7684\u5feb\u7167\u6587\u4ef6\u3002<\/p>\n\n\n\n
<\/figure>\n\n\n\n\u4ee5\u4e0a\u5c31\u662fOPTIMIZE\u8fd0\u884c\u4e2d\u7684\u6d41\u7a0b\u3002<\/p>\n\n\n\n
\u539f\u751f\u7684\u8bed\u6cd5\u652f\u6301\uff1a<\/p>\n\n\n\n
OPTIMIZE table_identifier [ WHERE predictate ]\nZORDER BY col_name1, col_name2<\/code><\/pre>\n\n\n\n\u518d\u6b21\u5f3a\u8c03\uff0cwhere\u6761\u4ef6\u4e2d\u4ec5\u652f\u6301\u5206\u533a\u5217\uff0c\u7528\u4f5c\u5206\u533a\u7ec4\u7ec7\u4f18\u5316\u7684\u7b5b\u9009\u3002<\/p>\n\n\n\n
04<\/strong><\/p>\n\n\n\n
\u6027\u80fd\u6d4b\u8bc4<\/strong><\/p>\n\n\n\n
\u6211\u4eec\u505a\u4e86\u6027\u80fd\u8bc4\u6d4b\uff0c\u6d4b\u8bd5\u4e86\u6570\u636e\u7ec4\u7ec7\u4f18\u5316\u4ee5\u540e\u5e26\u6765\u7684\u67e5\u8be2\u6027\u80fd\u7684\u63d0\u5347\u60c5\u51b5\u3002\u4e3b\u8981\u5206\u4e3a\u4ee5\u4e0b\u4e24\u7c7b\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
\u5173\u952e\u53c2\u6570\u6d4b\u8bd5<\/strong><\/li>
\u805a\u5408\u5217\uff1a\u5f88\u660e\u663e\uff0c\u4e0d\u540c\u7684\u5217\u505a\u805a\u5408\u6548\u679c\u4e0d\u540c<\/li>
\u8f93\u51fa\u6587\u4ef6\u5927\u5c0f\uff1a\u914d\u7f6e\u5199\u51fa\u6587\u4ef6\u7684\u5927\u5c0f<\/li>
CUBE\u5927\u5c0f\uff1a\u5b9e\u9645\u53c2\u4e0e\u8fdb\u884c\u591a\u7ef4\u805a\u5408\u7684\u6700\u5c0f\u5355\u5143<\/li>
SSB\u57fa\u51c6\u6d4b\u8bd5<\/strong><\/li><\/ul>\n\n\n\n\u5173\u952e\u53c2\u6570\u6d4b\u8bd5\u6d4b\u8bd5\u914d\u7f6e\uff1a<\/p>\n\n\n\n
<\/figure>\n\n\n\n1. \u5173\u952e\u53c2\u6570\u6d4b\u8bd5-\u805a\u5408\u5217<\/strong><\/p>\n\n\n\n
\u9996\u5148\uff0c\u6211\u4eec\u56fa\u5b9a\u4e86\u8f93\u51fa\u6587\u4ef6\u5927\u5c0f\u4e3a1G\uff0cCUBE\u5927\u5c0f\u4e3a150G\uff0c\u51c6\u5907\u4e86\u4e24\u7ec4\u4e0d\u540c\u6570\u91cf\u7684\u805a\u5408\u5217\u8fdb\u884c\u6d4b\u8bd5\u3002<\/p>\n\n\n\n
<\/figure>\n\n\n\n\u6d4b\u8bd5\u7ed3\u679c\u663e\u793a\uff0c\u805a\u5408\u5217\u8d8a\u591a\uff0c\u6548\u679c\u8d8a\u5dee\uff0c\u76f8\u5e94\u7684\u6587\u4ef6\u8fc7\u6ee4\u6548\u679c\u8d8a\u5dee\uff0c\u56e0\u4e3a\u76f8\u540c\u7684\u67e5\u8be2\u9700\u8981\u626b\u63cf\u66f4\u591a\u7684\u6587\u4ef6\uff0c\u4f46\u662f\u76f8\u6bd4\u4e8e\u7ec4\u7ec7\u4f18\u5316\u524d\u67e5\u8be2\u6548\u7387\u8fd8\u662f\u6709\u663e\u8457\u63d0\u5347\u7684\u3002<\/p>\n\n\n\n
\u56e0\u6b64\u5efa\u8bae\u5728\u6ee1\u8db3\u4e1a\u52a1\u9700\u6c42\u7684\u524d\u63d0\u4e0b\uff0c\u907f\u514d\u5bf9\u8fc7\u591a\u7684\u5217\u8fdb\u884c\u805a\u5408\u4f18\u5316\u3002<\/p>\n\n\n\n
2. \u5173\u952e\u53c2\u6570\u6d4b\u8bd5-\u8f93\u51fa\u6587\u4ef6\u5927\u5c0f<\/strong><\/p>\n\n\n\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u9650\u5b9a\u4e86\u805a\u5408\u5217\u548cCUBE\u5927\u5c0f\uff0c\u8bbe\u7f6e\u4e0d\u540c\u7684\u8f93\u51fa\u6587\u4ef6\u5927\u5c0f\u6765\u6d4b\u8bd5\u67e5\u8be2\u6548\u7387\u3002<\/p>\n\n\n\n
<\/figure>\n\n\n\n\u4ece\u7ed3\u679c\u4e0a\u6765\u770b\uff0c\u6587\u4ef6\u8f93\u51fa\u5927\u5c0f\u5bf9\u67e5\u8be2\u6548\u7387\u7684\u5f71\u54cd\u5e76\u4e0d\u5927\uff0c\u56e0\u4e3a\u6570\u636e\u8f83\u4e3a\u96c6\u4e2d\uff0c\u5c0f\u6587\u4ef6\u7684\u6570\u636e\u603b\u91cf\u66f4\u5c11\uff0c\u8282\u7701\u4e86\u6587\u4ef6IO\uff0c\u6240\u4ee5\u67e5\u8be2\u6548\u7387\u8981\u66f4\u597d\u4e9b\u3002\u4f46\u662f\u5e76\u4e0d\u5efa\u8bae\u5408\u5e76\u540e\u7684\u6587\u4ef6\u5927\u5c0f\u8bbe\u8ba1\u7684\u592a\u5c0f\uff0c\u5c0f\u6587\u4ef6\u6570\u91cf\u7684\u589e\u52a0\u5f88\u5bb9\u6613\u51fa\u73b0\u6587\u4ef6\u626b\u63cf\u6570\u91cf\u7684\u589e\u52a0\uff0c\u8fd9\u4e2a\u5e73\u8861\u4e0d\u6613\u628a\u63a7\uff0c\u6240\u4ee5\u66f4\u5efa\u8bae\u9ed8\u8ba41G\u7684\u8f93\u51fa\u5927\u5c0f\u6bd4\u8f83\u5408\u9002\u5927\u90e8\u5206\u573a\u666f\u3002<\/p>\n\n\n\n
3. \u5173\u952e\u53c2\u6570\u6d4b\u8bd5-CUBE\u5927\u5c0f<\/strong><\/p>\n\n\n\n
\u6211\u4eec\u9650\u5b9a\u4e86\u805a\u5408\u5217\u548c\u8f93\u51fa\u6587\u4ef6\u5927\u5c0f\uff0c\u8bbe\u7f6e\u4e0d\u540c\u7684CUBE\u5927\u5c0f\u6765\u6d4b\u8bd5\u67e5\u8be2\u6548\u7387\u3002<\/p>\n\n\n\n
<\/figure>\n\n\n\n\u4ece\u6d4b\u8bd5\u7ed3\u679c\u6765\u770b\uff0cCUBE\u8d8a\u5c0f\uff0c\u6027\u80fd\u8d8a\u5dee\u3002\u4f46CUBE\u8bbe\u7f6e\u7684\u5982\u679c\u5f88\u5927\uff0c\u53cd\u800c\u5bb9\u6613\u5728\u589e\u91cfOPTIMIZE\u7684\u65f6\u5019\uff0c\u5bfc\u81f4\u9700\u8981\u8bfb\u53d6\u5927\u91cf\u7684\u6570\u636e\u6765\u6ee1\u8db3\u5c0f\u90e8\u5206\u6570\u636e\u589e\u91cf\u7684\u4f18\u5316\u3002\u6240\u4ee5\u5efa\u8bae\u8fd8\u662f\u4f7f\u7528\u9ed8\u8ba4\u914d\u7f6e\uff0c\u4f7f\u7528150G\u7684CUBE\u8f83\u4e3a\u5747\u8861\uff0c\u5bf9\u5927\u90e8\u5206\u573a\u666f\u662f\u66f4\u4e3a\u9002\u7528\u7684\u3002<\/p>\n\n\n\n
4. SSB\u57fa\u51c6\u6d4b\u8bd5<\/strong><\/p>\n\n\n\n
SSB\u6d4b\u8bd5\u662f\u57fa\u4e8eKyligence\u5b98\u65b9\u63d0\u4f9b\u7684\u5f00\u6e90SSB\uff08Star Schema Benchmark\uff09\u538b\u6d4b\u5de5\u5177\uff0c\u5bf9\u5176\u4e2d\u7684\u67e5\u8be2\u505a\u4e86\u90e8\u5206\u6539\u9020\uff0c\u4e3b\u8981\u9009\u53d6\u4f7f\u7528Q3.1\u5230Q3.4\u8fdb\u884c\u6d4b\u8bd5\u3002<\/p>\n\n\n\n
<\/figure>\n\n\n\nSSB\u6d4b\u8bd5\u7684\u914d\u7f6e\uff1a<\/p>\n\n\n\n
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