{"id":47102,"date":"2023-07-04T23:52:49","date_gmt":"2023-08-02T01:25:12","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e9%a6%96%e6%ac%a1%e5%b0%86%e6%95%b0%e6%8d%ae%e5%af%bc%e5%85%a5delta-lake%e3%80%82\/"},"modified":"2024-04-30T12:01:00","modified_gmt":"2024-04-30T04:01:00","slug":"%e9%a6%96%e6%ac%a1%e5%b0%86%e6%95%b0%e6%8d%ae%e5%af%bc%e5%85%a5delta-lake%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e9%a6%96%e6%ac%a1%e5%b0%86%e6%95%b0%e6%8d%ae%e5%af%bc%e5%85%a5delta-lake%e3%80%82\/","title":{"rendered":"\u9996\u6b21\u5c06\u6570\u636e\u5bfc\u5165Delta Lake"},"content":{"rendered":"<p>\u5f00\u59cb\u8fdb\u884cETL\u6570\u636e\u6ce8\u5165\u5230Delta 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INTO\u3002\u8fd9\u4e24\u4e2a\u529f\u80fd\u4f7f\u5f97\u6211\u4eec\u65e0\u9700\u4f7f\u7528\u50cfKafka\u8fd9\u6837\u7684\u5206\u5e03\u5f0f\u5b9e\u65f6\u6d41\u6570\u636e\u7cfb\u7edf\uff0c\u5c31\u53ef\u4ee5\u4ee5\u5e42\u7b49\u65b9\u5f0f\u4ece\u6570\u636e\u6e56\u6587\u4ef6\u5939\u76f4\u63a5\u589e\u91cf\u5bfc\u5165\u6570\u636e\uff0c\u5bf9\u4e8e\u6570\u636e\u5de5\u7a0b\u5e08\u5c24\u5176\u6709\u7528\u3002\u9664\u4e86\u5927\u5927\u7b80\u5316\u4e86\u589e\u91cfETL\u8fc7\u7a0b\uff0c\u8fd8\u53ef\u4ee5\u9ad8\u6548\u5730\u5bfc\u5165\u6570\u636e\uff0c\u56e0\u4e3a\u5b83\u53ea\u5bfc\u5165\u65b0\u6570\u636e\uff0c\u800c\u4e0d\u662f\u91cd\u65b0\u5904\u7406\u73b0\u6709\u6570\u636e\u3002<\/p>\n<p>\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5df2\u7ecf\u63d0\u5230\u4e86\u4e24\u4e2a\u6982\u5ff5\uff0c\u5373\u5e42\u7b49\u6027\u548c\u589e\u91cfETL\u3002\u8ba9\u6211\u4eec\u6765\u770b\u770b\u5b83\u4eec\u5206\u522b\u610f\u5473\u7740\u4ec0\u4e48\u3002<\/p>\n<p>\u3079\u304d\u7b49\u6027(Idempotent)\u306f\u3001\u540c\u3058\u30c7\u30fc\u30bf\u3092\u51e6\u7406\u3059\u308b\u969b\u306b\u306f\u3001\u5e38\u306b\u540c\u3058\u7d50\u679c\u3092\u751f\u307f\u51fa\u3059\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u30a8\u30ec\u30d9\u30fc\u30bf\u30fc\u306e\u30dc\u30bf\u30f3\u306f\u3079\u304d\u7b49\u6027\u304c\u3042\u308b\u3068\u8a00\u3048\u307e\u3059\u3002\u3042\u306a\u305f\u304c11\u968e\u306e\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u3001\u305d\u306e\u5f8c\u306b\u30a8\u30ec\u30d9\u30fc\u30bf\u30fc\u306b\u5165\u3063\u3066\u304d\u305f\u4ed6\u306e\u4eba\u3082\u540c\u3058\u968e\u306e\u30dc\u30bf\u30f3\u3092\u62bc\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3089\u5168\u3066\u306e11\u968e\u30dc\u30bf\u30f3\u306e\u30d7\u30c3\u30b7\u30e5\u306f\u540c\u3058\u30c7\u30fc\u30bf\u3067\u3059\u306e\u3067\u3001\u51e6\u7406\u306f\u4e00\u5ea6\u306e\u307f\u3068\u306a\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u4ed6\u306e\u8ab0\u304b\u304c3\u968e\u306e\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u305f\u3089\u3001\u3053\u308c\u306f\u65b0\u305f\u306a\u30c7\u30fc\u30bf\u3068\u306a\u308b\u306e\u3067\u3001\u305d\u308c\u306b\u5fdc\u3058\u305f\u51e6\u7406\u304c\u884c\u308f\u308c\u307e\u3059\u3002 \u8ab0\u304c\u62bc\u3057\u305f\u306e\u304b\u3001\u3069\u306e\u968e\u306b\u5230\u7740\u3059\u308b\u306e\u304b\u306b\u95a2\u4fc2\u306a\u304f\u3001\u7279\u5b9a\u306e\u968e\u306e\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u3001\u5bfe\u5fdc\u3059\u308b\u968e\u306b\u79fb\u52d5\u3059\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u3001\u5e38\u306b\u540c\u3058\u7d50\u679c\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002<\/p>\n<p>\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30bf\u30ebETL &#8211; 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decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7ce8913a08637a69e3b5\/5-0.jpg\" alt=\"\" \/><\/div>\n<h1>\u590d\u5236\u5230<\/h1>\n<p>COPY INTO\u662f\u4e00\u4e2a\u5c06\u6570\u636e\u4ece\u6587\u4ef6\u5939\u52a0\u8f7d\u5230Delta Lake\u8868\u7684SQL\u547d\u4ee4\u3002\u4e0b\u9762\u7684\u4ee3\u7801\u7247\u6bb5\u5c55\u793a\u4e86\u5982\u4f55\u8f7b\u677e\u5730\u5c06\u6e90\u6587\u4ef6\u5939ingestLandingZone\u4e2d\u7684JSON\u6587\u4ef6\u590d\u5236\u5230\u76ee\u6807Delta Lake\u8868ingestCopyIntoTablePath\u4e2d\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7ce8913a08637a69e3b5\/8-0.png\" alt=\"\" \/><\/div>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u9700\u8981\u6ce8\u610f\u7684\u4e8b\u9879\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u306b\u5c11\u6570(\u6570\u5343)\u306e\u30d5\u30a1\u30a4\u30eb\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u306b\u306f\u3001COPY INTO\u30b3\u30de\u30f3\u30c9\u306f\u3001\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u51e6\u7406\u3001\u30a2\u30c9\u30db\u30c3\u30af\u306e\u53d6\u308a\u8fbc\u307f\u306b\u304a\u3044\u3066\u306f\u5b8c\u74a7\u306a\u3082\u306e\u3068\u306a\u308a\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u30d5\u30a1\u30a4\u30eb\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306f\u3001JSON\u3001CSV\u3001AVRO\u3001ORC\u3001PARQUET\u3001TEXT\u3001\u30d0\u30a4\u30ca\u30ea\u30fc\u30d5\u30a1\u30a4\u30eb\u3067\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u4e0a\u306e\u4f8b\u306e\u3088\u3046\u306b\u3001\u53d6\u308a\u8fbc\u307f\u5148\u306b\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u4e0a\u306e\u65e2\u5b58Delta Lake\u30c6\u30fc\u30d6\u30eb\u3084\u3001Delta Lake\u30c6\u30fc\u30d6\u30eb\u306e\u4f4d\u7f6e\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30ce\u30fc\u30c8\u30d6\u30c3\u30af\u3067COPY INTO\u3092\u4f7f\u3048\u308b\u3060\u3051\u3067\u306a\u304f\u3001Databricks SQL\u3067\u30c7\u30fc\u30bf\u3092\u53d6\u308a\u8fbc\u3080\u306e\u3082\u30d9\u30b9\u30c8\u306a\u65b9\u6cd5\u3067\u3059\u3002<\/ul>\n<h1>\u81ea\u52a8\u88c5\u8f7d\u673a<\/h1>\n<p>Auto Loader\u901a\u8fc7\u4f7f\u7528\u76ee\u5f55\u5217\u8868\u548c\u6587\u4ef6\u901a\u77e5\u6765\u63d0\u4f9b\u5c06\u6587\u4ef6\u5939\u4e2d\u7684\u65b0\u6570\u636e\u5bfc\u5165Delta Lake\u8868\u7684Python\u548cScala\u65b9\u6cd5\u3002Auto Loader\u662fApache Spark\u2122\u7ed3\u6784\u5316\u6d41\u5904\u7406\u7684\u6570\u636e\u6e90\uff0c\u4f46\u4e0d\u9700\u8981\u6301\u7eed\u8fd0\u884c\u3002\u5982\u4e0b\u6240\u8ba8\u8bba\u7684\u90a3\u6837\uff0c\u60a8\u4e5f\u53ef\u4ee5\u4f7f\u7528\u89e6\u53d1\u4e00\u6b21\u7684\u9009\u9879\u5c06\u5904\u7406\u5207\u6362\u4e3a\u4f5c\u4e1a\uff0c\u5e76\u5728\u5904\u7406\u540e\u5173\u95ed\u3002\u76ee\u5f55\u5217\u8868\u65b9\u6cd5\u76d1\u89c6\u76ee\u5f55\u4e2d\u7684\u6587\u4ef6\uff0c\u5e76\u786e\u5b9a\u65b0\u6587\u4ef6\u6216\u4e0a\u6b21\u5904\u7406\u540e\u66f4\u65b0\u7684\u6587\u4ef6\u3002\u8be5\u65b9\u6cd5\u662f\u9ed8\u8ba4\u9009\u9879\uff0c\u5e76\u4e14\u5bf9\u4e8e\u6587\u4ef6\u5939\u4e2d\u6587\u4ef6\u6570\u91cf\u8f83\u5c11\u7684\u60c5\u51b5\u4e0b\u662f\u4e00\u4e2a\u7406\u60f3\u7684\u9009\u62e9\u3002\u5728\u5176\u4ed6\u60c5\u51b5\u4e0b\uff0c\u6587\u4ef6\u901a\u77e5\u65b9\u6cd5\u5c06\u5229\u7528\u4e91\u670d\u52a1\u53d1\u9001\u901a\u77e5\uff0c\u4ee5\u901a\u77e5\u65b0\u6587\u4ef6\u7684\u51fa\u73b0\u548c\u66f4\u65b0\u3002<\/p>\n<p>\u68c0\u67e5\u70b9\u4f1a\u5728ETL\u505c\u6b62\u65f6\u4fdd\u5b58\u72b6\u6001\u3002\u901a\u8fc7\u5229\u7528\u68c0\u67e5\u70b9\uff0c\u53ef\u4ee5\u4f7f\u81ea\u52a8\u52a0\u8f7d\u7a0b\u5e8f\u6301\u7eed\u8fd0\u884c\uff0c\u5e76\u5c06\u5176\u7eb3\u5165\u5b9a\u671f\u548c\u8c03\u5ea6\u4f5c\u4e1a\u7684\u4e00\u90e8\u5206\u3002\u5f53\u81ea\u52a8\u52a0\u8f7d\u7a0b\u5e8f\u505c\u6b62\u5e76\u91cd\u65b0\u542f\u52a8\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u68c0\u67e5\u70b9\u6765\u6062\u590d\u5230\u6700\u65b0\u72b6\u6001\uff0c\u800c\u65e0\u9700\u91cd\u65b0\u5904\u7406\u5df2\u5904\u7406\u8fc7\u7684\u6587\u4ef6\u3002\u5728\u4ee5\u4e0b\u793a\u4f8b\u4e2d\uff0c\u8bbe\u7f6e\u4e86\u201ctrigger 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