{"id":1321,"date":"2023-03-19T08:30:01","date_gmt":"2023-03-19T00:30:01","guid":{"rendered":"http:\/\/viplao.com\/?p=1321"},"modified":"2023-03-19T08:30:03","modified_gmt":"2023-03-19T00:30:03","slug":"%e3%80%90%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7%e3%80%91flink-sql-%e5%ae%9e%e8%b7%b54-sql-api-%e7%b1%bb%e5%9e%8b%e7%b3%bb%e7%bb%9f","status":"publish","type":"post","link":"http:\/\/viplao.com\/index.php\/2023\/03\/19\/%e3%80%90%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7%e3%80%91flink-sql-%e5%ae%9e%e8%b7%b54-sql-api-%e7%b1%bb%e5%9e%8b%e7%b3%bb%e7%bb%9f\/","title":{"rendered":"\u3010\u8fd0\u7ef4\u5de5\u5177\u3011FLINK SQL\u00a0\u5b9e\u8df54 &#8211; sql api \u7c7b\u578b\u7cfb\u7edf"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_71 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u6587\u7ae0\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"http:\/\/viplao.com\/index.php\/2023\/03\/19\/%e3%80%90%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7%e3%80%91flink-sql-%e5%ae%9e%e8%b7%b54-sql-api-%e7%b1%bb%e5%9e%8b%e7%b3%bb%e7%bb%9f\/#1%E5%BA%8F%E7%AF%87-%E5%85%88%E8%AF%B4%E7%BB%93%E8%AE%BA\" title=\"1.\u5e8f\u7bc7-\u5148\u8bf4\u7ed3\u8bba\">1.\u5e8f\u7bc7-\u5148\u8bf4\u7ed3\u8bba<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"http:\/\/viplao.com\/index.php\/2023\/03\/19\/%e3%80%90%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7%e3%80%91flink-sql-%e5%ae%9e%e8%b7%b54-sql-api-%e7%b1%bb%e5%9e%8b%e7%b3%bb%e7%bb%9f\/#2%E8%83%8C%E6%99%AF%E7%AF%87\" 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class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"http:\/\/viplao.com\/index.php\/2023\/03\/19\/%e3%80%90%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7%e3%80%91flink-sql-%e5%ae%9e%e8%b7%b54-sql-api-%e7%b1%bb%e5%9e%8b%e7%b3%bb%e7%bb%9f\/#212scala_%E7%8E%AF%E5%A2%83\" title=\"2.1.2.scala \u73af\u5883\">2.1.2.scala \u73af\u5883<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"http:\/\/viplao.com\/index.php\/2023\/03\/19\/%e3%80%90%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7%e3%80%91flink-sql-%e5%ae%9e%e8%b7%b54-sql-api-%e7%b1%bb%e5%9e%8b%e7%b3%bb%e7%bb%9f\/#22%E7%B1%BB%E5%9E%8B%E7%B3%BB%E7%BB%9F%E4%B8%8D%E4%B8%80%E8%87%B4\" title=\"2.2.\u7c7b\u578b\u7cfb\u7edf\u4e0d\u4e00\u81f4\">2.2.\u7c7b\u578b\u7cfb\u7edf\u4e0d\u4e00\u81f4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"http:\/\/viplao.com\/index.php\/2023\/03\/19\/%e3%80%90%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7%e3%80%91flink-sql-%e5%ae%9e%e8%b7%b54-sql-api-%e7%b1%bb%e5%9e%8b%e7%b3%bb%e7%bb%9f\/#23TypeInformation_%E7%B1%BB%E5%9E%8B%E4%BF%A1%E6%81%AF%E4%B8%8E%E5%BA%8F%E5%88%97%E5%8C%96%E5%99%A8%E7%BB%91%E5%AE%9A\" title=\"2.3.TypeInformation \u7c7b\u578b\u4fe1\u606f\u4e0e\u5e8f\u5217\u5316\u5668\u7ed1\u5b9a\">2.3.TypeInformation \u7c7b\u578b\u4fe1\u606f\u4e0e\u5e8f\u5217\u5316\u5668\u7ed1\u5b9a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"http:\/\/viplao.com\/index.php\/2023\/03\/19\/%e3%80%90%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7%e3%80%91flink-sql-%e5%ae%9e%e8%b7%b54-sql-api-%e7%b1%bb%e5%9e%8b%e7%b3%bb%e7%bb%9f\/#3%E7%9B%AE%E6%A0%87%E7%AF%87-%E9%A2%84%E6%9C%9F%E6%95%88%E6%9E%9C%E6%98%AF%E4%BB%80%E4%B9%88\" title=\"3.\u76ee\u6807\u7bc7-\u9884\u671f\u6548\u679c\u662f\u4ec0\u4e48\">3.\u76ee\u6807\u7bc7-\u9884\u671f\u6548\u679c\u662f\u4ec0\u4e48<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"http:\/\/viplao.com\/index.php\/2023\/03\/19\/%e3%80%90%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7%e3%80%91flink-sql-%e5%ae%9e%e8%b7%b54-sql-api-%e7%b1%bb%e5%9e%8b%e7%b3%bb%e7%bb%9f\/#4%E6%A1%86%E6%9E%B6%E8%AE%BE%E8%AE%A1%E7%AF%87-%E5%85%B7%E4%BD%93%E6%96%B9%E6%A1%88%E5%AE%9E%E7%8E%B0\" title=\"4.\u6846\u67b6\u8bbe\u8ba1\u7bc7-\u5177\u4f53\u65b9\u6848\u5b9e\u73b0\">4.\u6846\u67b6\u8bbe\u8ba1\u7bc7-\u5177\u4f53\u65b9\u6848\u5b9e\u73b0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"http:\/\/viplao.com\/index.php\/2023\/03\/19\/%e3%80%90%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7%e3%80%91flink-sql-%e5%ae%9e%e8%b7%b54-sql-api-%e7%b1%bb%e5%9e%8b%e7%b3%bb%e7%bb%9f\/#41%E7%BB%9F%E4%B8%80%E4%BB%A5%E5%8F%8A%E6%A0%87%E5%87%86%E5%8C%96_SQL_%E7%B1%BB%E5%9E%8B%E7%B3%BB%E7%BB%9F\" title=\"4.1.\u7edf\u4e00\u4ee5\u53ca\u6807\u51c6\u5316 SQL \u7c7b\u578b\u7cfb\u7edf\">4.1.\u7edf\u4e00\u4ee5\u53ca\u6807\u51c6\u5316 SQL \u7c7b\u578b\u7cfb\u7edf<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"http:\/\/viplao.com\/index.php\/2023\/03\/19\/%e3%80%90%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7%e3%80%91flink-sql-%e5%ae%9e%e8%b7%b54-sql-api-%e7%b1%bb%e5%9e%8b%e7%b3%bb%e7%bb%9f\/#42%E9%80%BB%E8%BE%91%E7%B1%BB%E5%9E%8B%E4%B8%8E%E7%89%A9%E7%90%86%E7%B1%BB%E5%9E%8B%E8%A7%A3%E8%80%A6\" title=\"4.2.\u903b\u8f91\u7c7b\u578b\u4e0e\u7269\u7406\u7c7b\u578b\u89e3\u8026\">4.2.\u903b\u8f91\u7c7b\u578b\u4e0e\u7269\u7406\u7c7b\u578b\u89e3\u8026<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"http:\/\/viplao.com\/index.php\/2023\/03\/19\/%e3%80%90%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7%e3%80%91flink-sql-%e5%ae%9e%e8%b7%b54-sql-api-%e7%b1%bb%e5%9e%8b%e7%b3%bb%e7%bb%9f\/#421%E7%9C%8B%E7%9C%8B%E8%A7%A3%E8%80%A6%E7%9A%84%E5%85%B7%E4%BD%93%E5%AE%9E%E7%8E%B0\" title=\"4.2.1.\u770b\u770b\u89e3\u8026\u7684\u5177\u4f53\u5b9e\u73b0\">4.2.1.\u770b\u770b\u89e3\u8026\u7684\u5177\u4f53\u5b9e\u73b0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"http:\/\/viplao.com\/index.php\/2023\/03\/19\/%e3%80%90%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7%e3%80%91flink-sql-%e5%ae%9e%e8%b7%b54-sql-api-%e7%b1%bb%e5%9e%8b%e7%b3%bb%e7%bb%9f\/#422%E7%9C%8B%E7%9C%8B%E5%8C%85%E7%9A%84%E5%88%92%E5%88%86\" title=\"4.2.2.\u770b\u770b\u5305\u7684\u5212\u5206\">4.2.2.\u770b\u770b\u5305\u7684\u5212\u5206<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"http:\/\/viplao.com\/index.php\/2023\/03\/19\/%e3%80%90%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7%e3%80%91flink-sql-%e5%ae%9e%e8%b7%b54-sql-api-%e7%b1%bb%e5%9e%8b%e7%b3%bb%e7%bb%9f\/#5%E6%80%BB%E7%BB%93%E7%AF%87\" title=\"5.\u603b\u7ed3\u7bc7\">5.\u603b\u7ed3\u7bc7<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1%E5%BA%8F%E7%AF%87-%E5%85%88%E8%AF%B4%E7%BB%93%E8%AE%BA\"><\/span>1.\u5e8f\u7bc7-\u5148\u8bf4\u7ed3\u8bba<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>protobuf \u4f5c\u4e3a\u76ee\u524d\u5404\u5927\u516c\u53f8\u4e2d\u6700\u5e7f\u6cdb\u4f7f\u7528\u7684\u9ad8\u6548\u7684\u534f\u8bae\u6570\u636e\u4ea4\u6362\u683c\u5f0f\u5de5\u5177\u5e93\uff0c\u4f1a\u5927\u91cf\u4f5c\u4e3a\u6d41\u5f0f\u6570\u636e\u4f20\u8f93\u7684\u5e8f\u5217\u5316\u65b9\u5f0f\uff0c\u6240\u4ee5\u5728 flink sql \u4e2d\u5982\u679c\u80fd\u5b9e\u73b0 protobuf \u7684 format \u4f1a\u975e\u5e38\u6709\u7528\uff08<strong>\u76ee\u524d\u793e\u533a\u5df2\u7ecf\u6709\u5bf9\u5e94\u7684\u5b9e\u73b0\uff0c\u4e0d\u8fc7\u76ee\u524d\u8fd8\u6ca1\u6709 merge\uff0c\u9884\u8ba1\u5728 1.14 \u7cfb\u5217\u7248\u672c\u4e2d\u80fd release<\/strong>\uff09\u3002<\/p>\n\n\n\n<p>\u8fd9\u4e00\u8282\u539f\u672c\u662f\u4ecb\u7ecd flink sql \u4e2d\u600e\u4e48\u81ea\u5b9a\u4e49\u5b9e\u73b0 protobuf format \u7c7b\u578b\uff0c\u4f46\u662f format \u7684\u5b9e\u73b0\u8fc7\u7a0b\u4e2d\u6d89\u53ca\u5230\u4e86 flink sql \u7c7b\u578b\u7cfb\u7edf\u7684\u77e5\u8bc6\uff0c\u6240\u4ee5\u6b64\u8282\u5148\u8bb2\u89e3 flink sql \u7c7b\u578b\u7cfb\u7edf\u7684\u5185\u5bb9\u4f5c\u4e3a\u94fa\u57ab\u3002\u4ee5\u5e2e\u52a9\u80fd\u66f4\u597d\u7684\u7406\u89e3 flink sql \u7684\u7c7b\u578b\u7cfb\u7edf\u3002<\/p>\n\n\n\n<p>flink sql \u7c7b\u578b\u7cfb\u7edf\u5e76\u4e0d\u662f\u4e00\u5f00\u59cb\u5c31\u662f\u76ee\u524d\u8fd9\u6837\u7684&nbsp;<code>LogicalType<\/code>&nbsp;\u4f53\u7cfb\uff0c\u5176\u6700\u5f00\u59cb\u4e5f\u662f\u590d\u7528\u4e86 datastream \u7684&nbsp;<code>TypeInformation<\/code>\uff0c\u540e\u6765\u624d\u7531&nbsp;<code>TypeInformation<\/code>&nbsp;\u8f6c\u53d8\u4e3a\u4e86&nbsp;<code>LogicalType<\/code>\uff0c\u56e0\u6b64\u672c\u8282\u5206\u4e3a\u4ee5\u4e0b\u51e0\u4e2a\u5c0f\u8282\uff0c\u6765\u8bf4\u660e flink sql api \u7c7b\u578b\u7684\u8f6c\u53d8\u539f\u56e0\u3001\u8fc7\u7a0b\u4ee5\u53ca\u65b0\u7c7b\u578b\u7cfb\u7edf\u8bbe\u8ba1\u3002<\/p>\n\n\n\n<ol>\n<li>\u80cc\u666f\u7bc7<\/li>\n\n\n\n<li>\u76ee\u6807\u7bc7-\u9884\u671f\u6548\u679c\u662f\u4ec0\u4e48<\/li>\n\n\n\n<li>\u6846\u67b6\u8bbe\u8ba1\u7bc7-\u5177\u4f53\u65b9\u6848\u5b9e\u73b0<\/li>\n\n\n\n<li>\u603b\u7ed3\u7bc7<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2%E8%83%8C%E6%99%AF%E7%AF%87\"><\/span>2.\u80cc\u666f\u7bc7<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u719f\u6089 DataStream API \u7684\u540c\u5b66\u90fd\u77e5\u9053\uff0cDataStream API \u7684\u7c7b\u578b\u7cfb\u7edf TypeInformation \u4f53\u7cfb\u3002\u6240\u4ee5\u521d\u671f SQL API \u7684\u7c7b\u578b\u7cfb\u7edf\u4e5f\u662f\u5b8c\u5168\u7531 TypeInformation \u5b9e\u73b0\u7684\u3002\u4f46\u662f\u968f\u7740 SQL API \u7684 feature \u589e\u5f3a\uff0c\u7528\u6237\u8d8a\u6765\u8d8a\u591a\u7684\u4f7f\u7528 SQL API \u4e4b\u540e\uff0c\u53d1\u73b0 TypeInformation \u4f5c\u4e3a SQL API \u7684\u7c7b\u578b\u7cfb\u7edf\u8fd8\u662f\u6709\u4e00\u4e9b\u7f3a\u9677\u7684\u3002<\/p>\n\n\n\n<p>\u5177\u4f53\u6211\u4eec\u53c2\u8003&nbsp;<code>Flip-37<\/code>\uff1a<a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/cwiki.apache.org\/confluence\/display\/FLINK\/FLIP-37%253A%2BRework%2Bof%2Bthe%2BTable%2BAPI%2BType%2BSystem\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/cwiki.apache.org\/confluence\/display\/FLINK\/FLIP-37%3A+Rework+of+the+Table+API+Type+System<\/a>\u3002<\/p>\n\n\n\n<p><code>Flip-65<\/code>\uff1a<a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/cwiki.apache.org\/confluence\/display\/FLINK\/FLIP-65%253A%2BNew%2Btype%2Binference%2Bfor%2BTable%2BAPI%2BUDFs\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/cwiki.apache.org\/confluence\/display\/FLINK\/FLIP-65%3A+New+type+inference+for+Table+API+UDFs<\/a><\/p>\n\n\n\n<p><code>issue<\/code>\uff1a<a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/issues.apache.org\/jira\/browse\/FLINK-12251\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/issues.apache.org\/jira\/browse\/FLINK-12251<\/a><\/p>\n\n\n\n<p>\u6bd4\u5982\u4e00\u4e9b\u7528\u6237\u53cd\u9988\u6709\u4ee5\u4e0b\u95ee\u9898\uff1a<\/p>\n\n\n\n<p><a href=\"https:\/\/docs.google.com\/document\/d\/1zKSY1z0lvtQdfOgwcLnCMSRHew3weeJ6QfQjSD0zWas\/edit#heading=h.64s92ad5mb1\">https:\/\/docs.google.com\/document\/d\/1zKSY1z0lvtQdfOgwcLnCMSRHew3weeJ6QfQjSD0zWas\/edit#heading=h.64s92ad5mb1<\/a><\/p>\n\n\n\n<p>\u5728&nbsp;<code>Flip-37<\/code>&nbsp;\u4e2d\u4ecb\u7ecd\u5230\uff1a<\/p>\n\n\n\n<p><strong>1. TypeInformation \u4e0d\u80fd\u548c SQL \u7c7b\u578b\u7cfb\u7edf\u5f88\u597d\u7684\u96c6\u6210\uff0c\u5e76\u4e14\u4e0d\u540c\u5b9e\u73b0\u8bed\u8a00\u4e5f\u4f1a\u5bf9\u5176\u7c7b\u578b\u4fe1\u606f\u4ea7\u751f\u5f71\u54cd\u3002<\/strong><\/p>\n\n\n\n<p><strong>2. TypeInformation \u4e0e SQL \u7c7b\u578b\u7cfb\u7edf\u4e0d\u4e00\u81f4\u3002<\/strong><\/p>\n\n\n\n<p><strong>3. \u4e0d\u80fd\u4e3a DECIMAL \u7b49\u5b9a\u4e49\u7cbe\u5ea6\u548c\u5c0f\u6570\u4f4d\u6570\u3002<\/strong><\/p>\n\n\n\n<p><strong>4. \u4e0d\u652f\u6301 CHAR\/VARCHAR \u4e4b\u95f4\u7684\u5dee\u5f02\uff08FLINK-10257\u3001FLINK-9559\uff09\u3002<\/strong><\/p>\n\n\n\n<p><strong>5. \u7269\u7406\u7c7b\u578b\u548c\u903b\u8f91\u7c7b\u578b\u662f\u7d27\u5bc6\u8026\u5408\u7684\u3002<\/strong><\/p>\n\n\n\n<p><code>flink sql \u7c7b\u578b\u7cfb\u7edf\u8bbe\u8ba1\u6587\u6863<\/code>\uff1a<a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/docs.google.com\/document\/d\/1a9HUb6OaBIoj9IRfbILcMFPrOL7ALeZ3rVI66dvA2_U\/edit%23heading%3Dh.5qoorezffk0t\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/docs.google.com\/document\/d\/1a9HUb6OaBIoj9IRfbILcMFPrOL7ALeZ3rVI66dvA2_U\/edit#heading=h.5qoorezffk0t<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"21%E5%BA%8F%E5%88%97%E5%8C%96%E5%99%A8%E5%8F%97%E6%89%A7%E8%A1%8C%E7%8E%AF%E5%A2%83%E5%BD%B1%E5%93%8D\"><\/span>2.1.\u5e8f\u5217\u5316\u5668\u53d7\u6267\u884c\u73af\u5883\u5f71\u54cd<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u600e\u4e48\u7406\u89e3\u4e0d\u540c\u8bed\u8a00\u7684\u73af\u5883\u4f1a\u5bf9\u7c7b\u578b\u4fe1\u606f\u4ea7\u751f\u5f71\u54cd\uff0c\u76f4\u63a5\u6765\u770b\u4e00\u4e0b\u4e0b\u9762\u8fd9\u4e2a\u4f8b\u5b50\uff08\u57fa\u4e8e&nbsp;<code>flink 1.8<\/code>\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import org.apache.flink.table.functions.TableFunction\n\ncase class SimpleUser(name: String, age: Int)\n\nclass TableFunc0 extends TableFunction&#91;SimpleUser] {\n\n  \/\/ make sure input element's format is \"&lt;string&amp;gt#&lt;int&gt;\"\n\n  def eval(user: String): Unit = {\n\n    if (user.contains(\"#\")) {\n\n      val splits = user.split(\"#\")\n\n      collect(SimpleUser(splits(0), splits(1).toInt))\n\n    }\n  }\n\n}\n<\/code><\/pre>\n\n\n\n<p><code>TableFunc0<\/code>&nbsp;\u51fa\u53c2\uff08SimpleUser\uff09\u7684&nbsp;<code>TypeInformation<\/code>&nbsp;\u4e0d\u4ec5\u53d6\u51b3\u4e8e<code>\u51fa\u53c2<\/code>\u672c\u8eab\uff0c\u8fd8\u53d6\u51b3\u4e8e\u4f7f\u7528\u7684<code>\u8868\u73af\u5883<\/code>\uff0c\u800c\u4e14\u6700\u7ec8\u7684\u5e8f\u5217\u5316\u5668\u4e5f\u662f\u4e0d\u540c\u7684\uff0c\u8fd9\u91cc\u4ee5 java \u73af\u5883\u548c scala \u73af\u5883\u505a\u6bd4\u8f83\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"211java_%E7%8E%AF%E5%A2%83\"><\/span>2.1.1.java \u73af\u5883<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u5728 java \u73af\u5883\u4e2d\uff0c\u4f7f\u7528&nbsp;<code>org.apache.flink.table.api.java.StreamTableEnvironment#registerFunction<\/code>&nbsp;\u6ce8\u518c\u51fd\u6570\u3002<\/p>\n\n\n\n<p>Java \u7c7b\u578b\u63d0\u53d6\u662f\u901a\u8fc7\u57fa\u4e8e\u53cd\u5c04\u7684&nbsp;<code>TypeExtractor<\/code>&nbsp;\u63d0\u53d6&nbsp;<code>TypeInformation<\/code>\u3002<\/p>\n\n\n\n<p>\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff08\u57fa\u4e8e flink 1.8 \u7248\u672c\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class JavaEnvTest {\n\n    public static void main(String&#91;] args) throws Exception {\n\n\n        StreamExecutionEnvironment sEnv = StreamExecutionEnvironment.getExecutionEnvironment();\n        \/\/ create a TableEnvironment for streaming queries\n        StreamTableEnvironment sTableEnv = StreamTableEnvironment.create(sEnv);\n\n        sTableEnv.registerFunction(\"table1\", new TableFunc0());\n\n        TableSqlFunction tableSqlFunction =\n                (TableSqlFunction) sTableEnv\n                        .getFunctionCatalog()\n                        .getSqlOperatorTable()\n                        .getOperatorList()\n                        .get(170);\n\n        TypeSerializer&lt;?&gt; t = tableSqlFunction.getRowTypeInfo().createSerializer(sEnv.getConfig());\n\n        sEnv.execute();\n\n    }\n\n}\n<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic3.zhimg.com\/80\/v2-e99c01923be00b0d894d3fda3a44e31a_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<p>1<\/p>\n\n\n\n<p>java \u73af\u5883\uff0c\u53ef\u4ee5\u770b\u5230\uff0c\u6700\u7ec8\u4f7f\u7528\u7684\u662f&nbsp;<code>Kryo \u5e8f\u5217\u5316\u5668<\/code>\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"212scala_%E7%8E%AF%E5%A2%83\"><\/span>2.1.2.scala \u73af\u5883<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u5728 scala \u73af\u5883\u4e2d\uff0c\u4f7f\u7528&nbsp;<code>org.apache.flink.table.api.scala.StreamTableEnvironment#registerFunction<\/code>&nbsp;\u6ce8\u518c\u51fd\u6570\u3002<\/p>\n\n\n\n<p>\u4f7f\u7528 Scala \u7c7b\u578b\u63d0\u53d6\u5806\u6808\u5e76\u901a\u8fc7\u4f7f\u7528&nbsp;<code>Scala \u5b8f<\/code>\u63d0\u53d6&nbsp;<code>TypeInformation<\/code>\u3002<\/p>\n\n\n\n<p>\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff08\u57fa\u4e8e flink 1.8 \u7248\u672c\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>object ScalaEnv {\n\n  def main(args: Array&#91;String]): Unit = {\n    val env = StreamExecutionEnvironment.getExecutionEnvironment\n\n    \/\/ create a TableEnvironment\n    val tableEnv = StreamTableEnvironment.create(env)\n\n    tableEnv.registerFunction(\"hashCode\", new TableFunc0())\n\n    val config = env.getConfig\n\n    val function = new TableFunc0()\n\n    registerFunction(config, function)\n\n    \/\/ execute\n    env.execute()\n  }\n\n  def registerFunction&#91;T: TypeInformation](config: ExecutionConfig, tf: TableFunction&#91;T]): Unit = {\n    val typeInfo: TypeInformation&#91;_] = if (tf.getResultType != null) {\n      tf.getResultType\n    } else {\n      implicitly&#91;TypeInformation&#91;T]]\n    }\n\n    val ty = typeInfo.createSerializer(config)\n\n  }\n\n}\n<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic3.zhimg.com\/80\/v2-7c4bfabf9f17a2b48974be7bd084934a_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<p>2<\/p>\n\n\n\n<p>scala \u73af\u5883\uff0c\u6700\u7ec8\u4f7f\u7528\u7684\u662f&nbsp;<code>Case Class \u5e8f\u5217\u5316\u5668<\/code>\u3002<\/p>\n\n\n\n<p>\u4f46\u662f\u903b\u8f91\u4e0a\u540c\u4e00\u4e2a sql \u7684 model \u7684\u5e8f\u5217\u5316\u65b9\u5f0f\u53ea\u5e94\u8be5\u4e0e model \u672c\u8eab\u6709\u5173\uff0c\u4e0d\u5e94\u8be5\u4e0e\u4e0d\u540c\u8bed\u8a00\u7684 env \u6709\u5173\u3002\u4e0d\u540c\u7684 env \u7684 model \u5e8f\u5217\u5316\u5668\u90fd\u5e94\u8be5\u76f8\u540c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"22%E7%B1%BB%E5%9E%8B%E7%B3%BB%E7%BB%9F%E4%B8%8D%E4%B8%80%E8%87%B4\"><\/span>2.2.\u7c7b\u578b\u7cfb\u7edf\u4e0d\u4e00\u81f4<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><code>SQL<\/code>&nbsp;\u7c7b\u578b\u7cfb\u7edf\u4e0e&nbsp;<code>TypeInformation<\/code>&nbsp;\u7cfb\u7edf\u4e0d\u4e00\u81f4\u3002\u5982\u4e0b\u56fe<\/p>\n\n\n\n<p><code>TypeInformation<\/code>&nbsp;\u7c7b\u578b\u7cfb\u7edf\u7684\u7ec4\u6210\uff0c\u719f\u6089 datastream \u7684\u540c\u5b66\u5e94\u8be5\u90fd\u89c1\u8fc7\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic2.zhimg.com\/80\/v2-12046c35c05fb2055f149364d9e50d91_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<p>\u4f46\u662f\u6807\u51c6\u7684 sql \u7c7b\u578b\u7cfb\u7edf\u7684\u7ec4\u6210\u5e94\u8be5\u662f\u7531\u5982\u4e0b\u7ec4\u6210\u8fd9\u6837\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic2.zhimg.com\/80\/v2-9a153503e8764e06e2f5981a6b56bc29_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic3.zhimg.com\/80\/v2-e2cbe034bf22a9fd4fdd4791138403be_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic2.zhimg.com\/80\/v2-f228ec64a34d3599067c05e2541f1e45_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<p>\u53ef\u89c1&nbsp;<code>TypeInformation<\/code>&nbsp;\u7c7b\u578b\u7cfb\u7edf\u4e0e\u6807\u51c6 SQL \u7c7b\u578b\u7cfb\u7edf\u7684\u5bf9\u5e94\u5173\u7cfb\u662f\u4e0d\u592a\u4e00\u81f4\u7684\uff0c\u8fd9\u4e5f\u5c31\u5bfc\u81f4\u4e86 flink sql \u4e0e&nbsp;<code>TypeInformation<\/code>&nbsp;\u4e0d\u80fd\u5f88\u597d\u7684\u96c6\u6210\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"23TypeInformation_%E7%B1%BB%E5%9E%8B%E4%BF%A1%E6%81%AF%E4%B8%8E%E5%BA%8F%E5%88%97%E5%8C%96%E5%99%A8%E7%BB%91%E5%AE%9A\"><\/span>2.3.TypeInformation \u7c7b\u578b\u4fe1\u606f\u4e0e\u5e8f\u5217\u5316\u5668\u7ed1\u5b9a<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5982\u56fe&nbsp;<code>TypeInformation<\/code>&nbsp;\u7684\u5177\u4f53\u5b9e\u73b0\u7c7b\u9700\u8981\u5b9e\u73b0&nbsp;<code>TypeInformation&lt;T&gt;#createSerializer<\/code>\uff0c\u6765\u6307\u5b9a\u7c7b\u578b\u4fe1\u606f\u7684\u5177\u4f53\u5e8f\u5217\u5316\u5668\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic4.zhimg.com\/80\/v2-ec63ba7a9d539cb168662fdda15a57d7_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<p>3<\/p>\n\n\n\n<p>\u4e3e\u4f8b\uff0c\u65e7\u7c7b\u578b\u7cfb\u7edf\u4e2d\uff0cflink sql api \u4e2d\u662f\u4f7f\u7528&nbsp;<code>CRow<\/code>&nbsp;\u8fdb\u884c\u7684\u5185\u90e8\u6570\u636e\u7684\u6d41\u8f6c\uff0c&nbsp;<code>CRowTypeInfo<\/code>&nbsp;\u5982\u4e0b\u56fe\uff0c\u5176\u5e8f\u5217\u5316\u5668\u56fa\u5b9a\u4e3a&nbsp;<code>CRowSerializer<\/code>\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic4.zhimg.com\/80\/v2-18e91733e2c21e5f05159cbc1a9985f3_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<p>19<\/p>\n\n\n\n<p>\u518d\u6765\u4e00\u4e2a\u4f8b\u5b50\uff0c&nbsp;<code>ListTypeInfo<\/code>&nbsp;\u7684\u5e8f\u5217\u5316\u5668\u56fa\u5b9a\u4e3a&nbsp;<code>ListSerializer<\/code>\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic2.zhimg.com\/80\/v2-24955fa5f7e9a0f53c891f9a778b71c5_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<p>4<\/p>\n\n\n\n<p>\u53ef\u4ee5\u770b\u5230&nbsp;<code>TypeInformation<\/code>&nbsp;\u7684\u7c7b\u578b\u4f53\u7cfb\u4e2d\uff0c\u4e00\u79cd&nbsp;<code>TypeInformation<\/code>&nbsp;\u5c31\u548c\u4e00\u4e2a&nbsp;<code>TypeSerializer<\/code>&nbsp;\u662f\u7ed1\u5b9a\u7684\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3%E7%9B%AE%E6%A0%87%E7%AF%87-%E9%A2%84%E6%9C%9F%E6%95%88%E6%9E%9C%E6%98%AF%E4%BB%80%E4%B9%88\"><\/span>3.\u76ee\u6807\u7bc7-\u9884\u671f\u6548\u679c\u662f\u4ec0\u4e48<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u535a\u4e3b\u4f53\u611f\u6bd4\u8f83\u6df1\u7684\u662f\uff1a<\/p>\n\n\n\n<p><strong>1. \u7edf\u4e00\u4ee5\u53ca\u6807\u51c6\u5316 SQL \u7c7b\u578b\u7cfb\u7edf<\/strong><\/p>\n\n\n\n<p><strong>2. \u903b\u8f91\u7c7b\u578b\u4e0e\u7269\u7406\u7c7b\u578b\u89e3\u8026<\/strong><\/p>\n\n\n\n<p>\u7136\u540e\u6765\u770b\u770b flink \u662f\u600e\u4e48\u505a\u8fd9\u4ef6\u4e8b\u60c5\u7684\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u90fd\u57fa\u4e8e&nbsp;<code>flink 1.13.1<\/code>\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4%E6%A1%86%E6%9E%B6%E8%AE%BE%E8%AE%A1%E7%AF%87-%E5%85%B7%E4%BD%93%E6%96%B9%E6%A1%88%E5%AE%9E%E7%8E%B0\"><\/span>4.\u6846\u67b6\u8bbe\u8ba1\u7bc7-\u5177\u4f53\u65b9\u6848\u5b9e\u73b0<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5148\u4ece\u6700\u7ec8\u6700\u4e0a\u5c42\u7684\u89d2\u5ea6\u51fa\u53d1\uff0c\u770b\u770b flink sql \u7a0b\u5e8f\u8fd0\u884c\u65f6\u6570\u636e\u8f7d\u4f53\u7684\u53d8\u5316\u3002<\/p>\n\n\n\n<p><strong>1.old planner<\/strong>\uff1a<\/p>\n\n\n\n<p>\u5185\u90e8\u6570\u636e\u6d41\u7684\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff1a<code>CRow<\/code>&nbsp;=&nbsp;<code>Row<\/code>&nbsp;+ \u6807\u8bc6\uff08\u662f\u5426\u56de\u64a4\u6570\u636e\uff09<\/p>\n\n\n\n<p>\u7c7b\u578b\u4fe1\u606f\uff1a<code>CRowTypeInfo<\/code>\uff0c\u5176\u7c7b\u578b\u7cfb\u7edf\u4f7f\u7528\u7684\u5b8c\u5168\u4e5f\u662f&nbsp;<code>TypeInformation<\/code>&nbsp;\u90a3\u4e00\u5957<\/p>\n\n\n\n<p>\u5e8f\u5217\u5316\u5668\uff1a<code>CRowSerializer<\/code>&nbsp;=&nbsp;<code>RowSerializer<\/code>&nbsp;+ \u6807\u8bc6\u5e8f\u5217\u5316<\/p>\n\n\n\n<p><strong>2.blink planner<\/strong>\uff1a<\/p>\n\n\n\n<p>\u5185\u90e8\u6570\u636e\u6d41\u7684\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff1a<code>RowData<\/code><\/p>\n\n\n\n<p>\u7c7b\u578b\u4fe1\u606f\uff1a<code>RowType<\/code>\uff0c\u57fa\u4e8e&nbsp;<code>LogicalType<\/code><\/p>\n\n\n\n<p>\u5e8f\u5217\u5316\u5668\uff1a<code>RowDataSerializer<\/code><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"41%E7%BB%9F%E4%B8%80%E4%BB%A5%E5%8F%8A%E6%A0%87%E5%87%86%E5%8C%96_SQL_%E7%B1%BB%E5%9E%8B%E7%B3%BB%E7%BB%9F\"><\/span>4.1.\u7edf\u4e00\u4ee5\u53ca\u6807\u51c6\u5316 SQL \u7c7b\u578b\u7cfb\u7edf<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5148\u6765\u91cd\u6e29\u4e0b\uff0cSQL \u6807\u51c6\u7c7b\u578b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic2.zhimg.com\/80\/v2-9a153503e8764e06e2f5981a6b56bc29_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic3.zhimg.com\/80\/v2-e2cbe034bf22a9fd4fdd4791138403be_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic2.zhimg.com\/80\/v2-f228ec64a34d3599067c05e2541f1e45_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<p>\u7136\u540e\u5f00\u770b\u770b\uff0cflink sql \u7684\u7c7b\u578b\u7cfb\u7edf\u8bbe\u8ba1\uff0c\u4ee3\u7801\u4f4d\u4e8e&nbsp;<code>flink-table-common<\/code>&nbsp;\u6a21\u5757\uff1a<\/p>\n\n\n\n<p>\u65b0\u7684\u7c7b\u578b\u7cfb\u7edf\u662f\u57fa\u4e8e&nbsp;<code>LogicalTypeFamily<\/code>\uff0c<code>LogicalTypeRoot<\/code>\uff0c<code>LogicalType<\/code>&nbsp;\u8fdb\u884c\u5b9e\u73b0\u7684\uff1a<\/p>\n\n\n\n<p><code>LogicalTypeFamily<\/code>\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic4.zhimg.com\/80\/v2-3968d198cf9634f53fb25d41f947996b_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<p><code>LogicalTypeRoot<\/code>\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic2.zhimg.com\/80\/v2-5fb9bcbe83a59be4d3f3a9ee9d1220fd_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<p><code>LogicalType<\/code>\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic4.zhimg.com\/80\/v2-702c5b693905f0be521f88d00447b4e3_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<p>\u5177\u4f53&nbsp;<code>LogicalType<\/code>&nbsp;\u7684\u5404\u7c7b\u5b9e\u73b0\u7c7b\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic2.zhimg.com\/80\/v2-851d44ac414bb2d57527262adc60e39d_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<p>12<\/p>\n\n\n\n<p>\u53ef\u4ee5\u53d1\u73b0\u5176\u8bbe\u8ba1\uff08\u679a\u4e3e\u4fe1\u606f\u3001\u5b9e\u73b0\u7b49\uff09\u90fd\u662f\u4e0e SQL \u6807\u51c6\u8fdb\u884c\u4e86\u5bf9\u9f50\u7684\u3002<\/p>\n\n\n\n<p>\u5177\u4f53\u7c7b\u578b\u8be6\u60c5\u53ef\u4ee5\u53c2\u8003\u5b98\u65b9\u6587\u6863\uff0c\u8fd9\u91cc\u4e0d\u8fc7\u591a\u8d58\u8ff0\u3002<a href=\"https:\/\/link.zhihu.com\/?target=https%3A\/\/ci.apache.org\/projects\/flink\/flink-docs-release-1.13\/docs\/dev\/table\/types\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/ci.apache.org\/projects\/flink\/flink-docs-release-1.13\/docs\/dev\/table\/types\/<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"42%E9%80%BB%E8%BE%91%E7%B1%BB%E5%9E%8B%E4%B8%8E%E7%89%A9%E7%90%86%E7%B1%BB%E5%9E%8B%E8%A7%A3%E8%80%A6\"><\/span>4.2.\u903b\u8f91\u7c7b\u578b\u4e0e\u7269\u7406\u7c7b\u578b\u89e3\u8026<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u89e3\u8026\u8fd9\u90e8\u5206\u7684\u5b9e\u73b0\u6bd4\u8f83\u597d\u7406\u89e3\uff0c\u535a\u4e3b\u901a\u8fc7\u4e24\u79cd\u65b9\u5f0f\u6765\u89e3\u91ca\u5176\u89e3\u8026\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"421%E7%9C%8B%E7%9C%8B%E8%A7%A3%E8%80%A6%E7%9A%84%E5%85%B7%E4%BD%93%E5%AE%9E%E7%8E%B0\"><\/span>4.2.1.\u770b\u770b\u89e3\u8026\u7684\u5177\u4f53\u5b9e\u73b0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u535a\u4e3b\u753b\u4e86\u4e00\u5f20\u56fe\u6765\u6bd4\u8f83\u4e0b&nbsp;<code>TypeInformation<\/code>&nbsp;\u4e0e&nbsp;<code>LogicalType<\/code>\uff0c\u5982\u4e0b\u56fe\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic2.zhimg.com\/80\/v2-218db23c6fdadb1040af88406bb87811_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<p>20<\/p>\n\n\n\n<ul>\n<li><strong>datastream\\old planner<\/strong>\uff1a\u5982\u5de6\u56fe\u6240\u793a\uff0c\u90fd\u662f\u57fa\u4e8e&nbsp;<code>TypeInformation<\/code>&nbsp;\u4f53\u7cfb\uff0c\u4e00\u79cd&nbsp;<code>TypeInformation<\/code>&nbsp;\u5c31\u548c\u4e00\u4e2a&nbsp;<code>TypeSerializer<\/code>&nbsp;\u662f\u7ed1\u5b9a\u7684\u3002<\/li>\n\n\n\n<li><strong>blink planner<\/strong>\uff1a\u5982\u53f3\u56fe\u6240\u793a\uff0c\u90fd\u662f\u57fa\u4e8e&nbsp;<code>LogicalType<\/code>&nbsp;\u4f53\u7cfb\uff0c\u4f46\u662f\u4e0e&nbsp;<code>TypeSerializer<\/code>&nbsp;\u901a\u8fc7\u4e2d\u95f4\u7684\u4e00\u5c42\u6620\u5c04\u5c42\u8fdb\u884c\u89e3\u8026\uff0c\u8fd9\u5c42\u6620\u5c04\u5c42\u662f blink planner \u72ec\u6709\u7684\uff0c<strong>\u5f53\u7136\u5982\u679c\u4f60\u4e5f\u80fd\u81ea\u5b9a\u4e49\u4e00\u4e2a planner\uff0c\u4f60\u4e5f\u53ef\u4ee5\u81ea\u5b9a\u4e49\u5bf9\u5e94\u7684\u6620\u5c04\u65b9\u5f0f<\/strong>\u3002<\/li>\n<\/ul>\n\n\n\n<p><code>LogicalType<\/code>&nbsp;\u53ea\u5305\u542b\u7c7b\u578b\u4fe1\u606f\uff0c\u5173\u4e8e\u5177\u4f53\u7684\u5e8f\u5217\u5316\u5668\u662f\u5728\u4e0d\u540c\u7684 planner \u4e2d\u5b9e\u73b0\u7684\u3002Blink Planner \u662f&nbsp;<code>InternalSerializers<\/code>\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"422%E7%9C%8B%E7%9C%8B%E5%8C%85%E7%9A%84%E5%88%92%E5%88%86\"><\/span>4.2.2.\u770b\u770b\u5305\u7684\u5212\u5206<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u5176\u5b9e\u6211\u4eec\u4e5f\u53ef\u4ee5\u901a\u8fc7\u8fd9\u4e9b\u5177\u4f53\u5b9e\u73b0\u7c7b\u7684\u5728 flink \u4e2d\u6240\u5728\u7684\u5305\u4e5f\u53ef\u4ee5\u770b\u51fa\u5176\u89e3\u8026\u65b9\u5f0f\u3002\u5982\u56fe\u6240\u793a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic2.zhimg.com\/80\/v2-e4f867a941e3e7041876b0285ced262d_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<p>21<\/p>\n\n\n\n<ul>\n<li><strong>datastream\\old planner<\/strong>\uff1a\u5982\u5de6\u56fe\u6240\u793a\uff0c\u5176\u4e2d\u7684\u6838\u5fc3\u903b\u8f91\u7c7b\u578b\u3001\u5e8f\u5217\u5316\u5668\u90fd\u662f\u5728&nbsp;<code>flink-core<\/code>&nbsp;\u4e2d\u5b9e\u73b0\u7684\u3002\u90fd\u662f\u57fa\u4e8e\u4ee5\u53ca\u590d\u7528\u4e86&nbsp;<code>TypeInformation<\/code>&nbsp;\u4f53\u7cfb\u3002<br><\/li>\n\n\n\n<li><strong>blink planner<\/strong>\uff1a\u5982\u53f3\u56fe\u6240\u793a\uff0c<code>LogicalType<\/code>&nbsp;\u4f53\u7cfb\u90fd\u662f\u4f4d\u4e8e&nbsp;<code>flink-table-common<\/code>&nbsp;\u6a21\u5757\u4e2d\uff0c\u4f5c\u4e3a sql \u57fa\u7840\u3001\u6807\u51c6\u7684\u4f53\u7cfb\u3002\u800c\u5176\u4e2d\u5177\u4f53\u7684\u5e8f\u5217\u5316\u5668\u662f\u5728&nbsp;<code>flink-table-runtime-blink<\/code>&nbsp;\u4e2d\u7684\uff0c\u53ef\u4ee5\u8bf4\u660e\u4e0d\u540c\u7684 planner \u662f\u6709\u5bf9\u5e94\u4e0d\u540c\u7684\u5b9e\u73b0\u7684\uff0c\u4ece\u800c\u5b9e\u73b0\u4e86\u903b\u8f91\u7c7b\u578b\u548c\u7269\u7406\u5e8f\u5217\u5316\u5668\u7684\u89e3\u8026\u3002<br><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5%E6%80%BB%E7%BB%93%E7%AF%87\"><\/span>5.\u603b\u7ed3\u7bc7<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u672c\u6587\u4e3b\u8981\u4ecb\u7ecd\u4e86 flink sql \u7c7b\u578b\u7cfb\u7edf\u7684\u5185\u5bb9\uff0c\u4ece\u80cc\u666f\u3001\u76ee\u6807\u4ee5\u53ca\u6700\u7ec8\u7684\u5b9e\u73b0\u4e0a\u505a\u4e86\u4e00\u4e9b\u601d\u8003\u548c\u5206\u6790\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>\u8f6c\u81ea\uff1a<a rel=\"noreferrer noopener\" href=\"https:\/\/www.zhihu.com\/people\/onemango\" target=\"_blank\">\u5927\u6570\u636e\u7f8a\u8bf4<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>1.\u5e8f\u7bc7-\u5148\u8bf4\u7ed3\u8bba protobuf \u4f5c\u4e3a\u76ee\u524d\u5404\u5927\u516c\u53f8\u4e2d\u6700\u5e7f\u6cdb\u4f7f\u7528\u7684\u9ad8\u6548\u7684\u534f\u8bae\u6570\u636e\u4ea4\u6362\u683c\u5f0f\u5de5\u5177\u5e93\uff0c\u4f1a&hellip; <a href=\"http:\/\/viplao.com\/index.php\/2023\/03\/19\/%e3%80%90%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7%e3%80%91flink-sql-%e5%ae%9e%e8%b7%b54-sql-api-%e7%b1%bb%e5%9e%8b%e7%b3%bb%e7%bb%9f\/\" class=\"more-link read-more\" rel=\"bookmark\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">\u3010\u8fd0\u7ef4\u5de5\u5177\u3011FLINK SQL\u00a0\u5b9e\u8df54 &#8211; sql api \u7c7b\u578b\u7cfb\u7edf<\/span><i class=\"fa fa-arrow-right\"><\/i><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[25],"views":912,"_links":{"self":[{"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/posts\/1321"}],"collection":[{"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/comments?post=1321"}],"version-history":[{"count":1,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/posts\/1321\/revisions"}],"predecessor-version":[{"id":1322,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/posts\/1321\/revisions\/1322"}],"wp:attachment":[{"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/media?parent=1321"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/categories?post=1321"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/tags?post=1321"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}