{"id":4985,"date":"2024-02-25T20:52:38","date_gmt":"2024-02-25T12:52:38","guid":{"rendered":"\/?p=4985"},"modified":"2024-02-26T21:29:32","modified_gmt":"2024-02-26T13:29:32","slug":"8-%e6%95%b0%e6%8d%ae%e4%bb%93%e5%ba%93%e7%9a%84%e5%a4%8d%e4%b9%a0","status":"publish","type":"post","link":"http:\/\/xinblog.ltd\/?p=4985","title":{"rendered":"8.\u6570\u636e\u4ed3\u5e93\u7684\u590d\u4e60"},"content":{"rendered":"<p>\u6570\u636e\u4ed3\u5e93\u7684\u590d\u4e60<\/p>\n<ol>\n<li>\n  ODS\u5c42\u5e38\u7528\u7684\u538b\u7f29\u548c\u5b58\u50a8\u65b9\u5f0f<\/li>\n<\/ol>\n<p>\u5bf9\u4e8e\u538b\u7f29\uff0c\u5219\u662fSnappy\uff0c\u5bf9\u4e8e\u5b58\u50a8\uff0c\u65e2\u6709Parquet\uff0c\u4e5f\u6709ORC\u6280\u672f\u8fdb\u884c\u538b\u7f29\u3002<\/p>\n<ol>\n<li>\n  \u6570\u636e\u4ed3\u5e93\u4e2d\u5e38\u89c1\u7684\u5206\u5c42\u6709\u54ea\u4e9b<\/li>\n<\/ol>\n<p>ODS \u539f\u59cb\u6570\u636e\u5c42\uff0c DWD \u660e\u7ec6\u6570\u636e\u5c42\uff0cDWS \u670d\u52a1\u6570\u636e\u5c42<\/p>\n<p>DWT 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log time\uff0c \u4e1a\u52a1\u53d1\u751f\u65f6\u95f4\u7684\u65f6\u95f4\u6233\u5b57\u6bb5proc time\uff0c\u63d0\u53d6\u7684\u65f6\u95f4\u6233\u5b57\u6bb5 extract time<\/p>\n<p>\u5e38\u89c1\u7684\u5c31\u662f\u6839\u636elog time \u591a\u83b7\u53d6\u4e00\u90e8\u5206\uff0c\u7136\u540e\u5229\u7528proc_time\u6765\u83b7\u53d6\u5230\u60f3\u8981\u7684\u6570\u636e\u3002<\/p>\n<ol>\n<li>\n  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