{"id":1308,"date":"2023-03-19T08:12:07","date_gmt":"2023-03-19T00:12:07","guid":{"rendered":"http:\/\/viplao.com\/?p=1308"},"modified":"2023-03-19T08:12:09","modified_gmt":"2023-03-19T00:12:09","slug":"%e3%80%90%e8%bf%90%e7%bb%b4%e5%b7%a5%e5%85%b7%e3%80%91flink-sql-%e5%a4%a9%e7%ba%a7%e5%88%ab%e7%aa%97%e5%8f%a3%e4%b8%ad%e5%ad%98%e5%9c%a8%e7%9a%84%e6%97%b6%e5%8c%ba%e9%97%ae%e9%a2%98","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%a4%a9%e7%ba%a7%e5%88%ab%e7%aa%97%e5%8f%a3%e4%b8%ad%e5%ad%98%e5%9c%a8%e7%9a%84%e6%97%b6%e5%8c%ba%e9%97%ae%e9%a2%98\/","title":{"rendered":"\u3010\u8fd0\u7ef4\u5de5\u5177\u3011Flink SQL\u00a0 \u5929\u7ea7\u522b\u7a97\u53e3\u4e2d\u5b58\u5728\u7684\u65f6\u533a\u95ee\u9898"},"content":{"rendered":"\n<p>\u672c\u6587\u4e3b\u8981\u5206\u4e3a\u4e24\u90e8\u5206\uff1a<\/p>\n\n\n\n<p>\u7b2c\u4e00\u90e8\u5206\uff08\u7b2c 1 &#8211; 3 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\u5c0f\u65f6\uff1f<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" 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%a4%a9%e7%ba%a7%e5%88%ab%e7%aa%97%e5%8f%a3%e4%b8%ad%e5%ad%98%e5%9c%a8%e7%9a%84%e6%97%b6%e5%8c%ba%e9%97%ae%e9%a2%98\/#%E6%97%B6%E9%97%B4%E5%92%8C%E6%97%B6%E5%8C%BA%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5\" title=\"\u65f6\u95f4\u548c\u65f6\u533a\u57fa\u672c\u6982\u5ff5\">\u65f6\u95f4\u548c\u65f6\u533a\u57fa\u672c\u6982\u5ff5<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" 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%a4%a9%e7%ba%a7%e5%88%ab%e7%aa%97%e5%8f%a3%e4%b8%ad%e5%ad%98%e5%9c%a8%e7%9a%84%e6%97%b6%e5%8c%ba%e9%97%ae%e9%a2%98\/#%E7%99%BD%E8%AF%9D%E6%97%B6%E9%97%B4%E5%92%8C%E6%97%B6%E5%8C%BA\" title=\"\u767d\u8bdd\u65f6\u95f4\u548c\u65f6\u533a\">\u767d\u8bdd\u65f6\u95f4\u548c\u65f6\u533a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" 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%a4%a9%e7%ba%a7%e5%88%ab%e7%aa%97%e5%8f%a3%e4%b8%ad%e5%ad%98%e5%9c%a8%e7%9a%84%e6%97%b6%e5%8c%ba%e9%97%ae%e9%a2%98\/#%E4%B8%BA%E4%BB%80%E4%B9%88%E4%B8%9C%E5%85%AB%E5%8C%BA%E6%98%AF%E5%8A%A0_8_%E5%B0%8F%E6%97%B6%EF%BC%9F\" title=\"\u4e3a\u4ec0\u4e48\u4e1c\u516b\u533a\u662f\u52a0 8 \u5c0f\u65f6\uff1f\">\u4e3a\u4ec0\u4e48\u4e1c\u516b\u533a\u662f\u52a0 8 \u5c0f\u65f6\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" 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%a4%a9%e7%ba%a7%e5%88%ab%e7%aa%97%e5%8f%a3%e4%b8%ad%e5%ad%98%e5%9c%a8%e7%9a%84%e6%97%b6%e5%8c%ba%e9%97%ae%e9%a2%98\/#Appendix\" title=\"Appendix\">Appendix<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1%E9%97%AE%E9%A2%98%E4%BB%A5%E5%8F%8A%E8%A7%A3%E5%86%B3%E6%96%B9%E6%A1%88\"><\/span><strong>1.\u95ee\u9898\u4ee5\u53ca\u89e3\u51b3\u65b9\u6848<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E9%97%AE%E9%A2%98_sql\"><\/span><strong>\u95ee\u9898 sql<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>sql \u5f88\u7b80\u5355\uff0c\u7528\u6765\u7edf\u8ba1\u5f53\u5929\u7d2f\u8ba1 uv\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--------------- \u4f2a\u4ee3\u7801 ---------------\nINSERT INTO\n  kafka_sink_table\nSELECT\n  -- \u7a97\u53e3\u5f00\u59cb\u65f6\u95f4\n  CAST(\n    TUMBLE_START(proctime, INTERVAL '1' DAY) AS bigint\n  ) AS window_start,\n  -- \u5f53\u524d\u8bb0\u5f55\u5904\u7406\u7684\u65f6\u95f4\n  cast(max(proctime) AS BIGINT) AS current_ts,\n  -- \u6bcf\u4e2a\u6876\u5185\u7684 uv\n  count(DISTINCT id) AS part_daily_full_uv\nFROM\n  kafka_source_table\nGROUP BY\n  mod(id, bucket_number),\n  -- bucket_number \u4e3a\u5e38\u6570\uff0c\u6839\u636e\u5177\u4f53\u573a\u666f\u6307\u5b9a\u5177\u4f53\u6570\u503c\n  TUMBLE(proctime, INTERVAL '1' DAY)\n--------------- \u4f2a\u4ee3\u7801 ---------------\n<\/code><\/pre>\n\n\n\n<p>\u4f60\u662f\u5426\u80fd\u4e00\u773c\u770b\u51fa\u8fd9\u4e2a sql \u6240\u5b58\u5728\u7684\u95ee\u9898\uff1f\uff08PS\uff1a\u6570\u636e\u6e90\u4ee5\u53ca\u6570\u636e\u6c47\u65f6\u533a\u90fd\u4e3a\u4e1c\u516b\u533a\uff09<\/p>\n\n\n\n<p><strong>\u300c\u6ca1\u9519\uff0c\u5929\u7ea7\u522b\u7a97\u53e3\u6240\u5b58\u5728\u7684\u65f6\u533a\u95ee\u9898\uff0c\u5373\u8fd9\u6bb5\u4ee3\u7801\u7edf\u8ba1\u7684\u4e0d\u662f\u697c\u4e3b\u6240\u5728\u4e1c\u516b\u533a\u4e00\u6574\u5929\u6570\u636e\u7684 uv\uff0c\u8fd9\u6bb5\u4ee3\u7801\u7edf\u8ba1\u7684\u4e00\u6574\u5929\u7684\u8303\u56f4\u5728\u4e1c\u516b\u533a\u662f\u7b2c\u4e00\u5929\u65e9 8 \u70b9\u81f3\u7b2c\u4e8c\u5929\u65e9 8 \u70b9\u3002\u300d<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%A7%A3%E5%86%B3%E6%96%B9%E6%A1%88\"><\/span><strong>\u89e3\u51b3\u65b9\u6848<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u697c\u4e3b\u76ee\u524d\u6240\u5904\u65f6\u533a\u4e3a\u4e1c\u516b\u533a\uff0c\u89e3\u51b3\u65b9\u6848\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--------------- \u4f2a\u4ee3\u7801 ---------------\nCREATE VIEW view_table AS\nSELECT\n   id,\n   -- \u901a\u8fc7\u6ce8\u5165\u65f6\u95f4\u89e3\u51b3\n   -- \u52a0\u4e0a\u4e1c\u516b\u533a\u7684\u65f6\u95f4\u504f\u79fb\u91cf\uff0c\u8bbe\u7f6e\u6ce8\u5165\u65f6\u95f4\u4e3a\u65f6\u95f4\u6233\u5217\n   CAST(CURRENT_TIMESTAMP AS BIGINT) * 1000 + 8 * 60 * 60 * 1000 as ingest_time\nFROM \n   source_table;\n\nINSERT INTO\n  target_table\nSELECT\n  CAST(\n    TUMBLE_START(ingest_time, INTERVAL '1' DAY) AS bigint\n  ) AS window_start,\n  cast(max(ingest_time) AS BIGINT) - 8 * 3600 * 1000 AS current_ts,\n  count(DISTINCT id) AS part_daily_full_uv\nFROM\n  view_table\nGROUP BY\n  mod(id, 1024),\n   -- \u6839\u636e\u6ce8\u5165\u65f6\u95f4\u5212\u5206\u5929\u7ea7\u522b\u7a97\u53e3\n  TUMBLE(ingest_time, INTERVAL '1' DAY)\n--------------- \u4f2a\u4ee3\u7801 ---------------\n<\/code><\/pre>\n\n\n\n<p>\u901a\u8fc7\u4e0a\u8ff0\u65b9\u6848\uff0c\u5c31\u53ef\u4ee5\u5c06\u7edf\u8ba1\u7684\u6570\u636e\u65f6\u95f4\u8303\u56f4\u8c03\u6574\u4e3a\u4e1c\u516b\u533a\u7684\u4eca\u65e5 0 \u70b9\u81f3\u660e\u65e5 0 \u70b9\u3002\u4e0b\u6587\u8be6\u7ec6\u8bf4\u660e\u6574\u4e2a\u9700\u6c42\u573a\u666f\u4ee5\u53ca\u89e3\u51b3\u65b9\u6848\u7684\u5b9e\u73b0\u548c\u5206\u6790\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2%E9%9C%80%E6%B1%82%E5%9C%BA%E6%99%AF%E4%BB%A5%E5%8F%8A%E5%AE%9E%E7%8E%B0%E6%96%B9%E6%A1%88\"><\/span><strong>2.\u9700\u6c42\u573a\u666f\u4ee5\u53ca\u5b9e\u73b0\u65b9\u6848<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E9%9C%80%E6%B1%82%E5%9C%BA%E6%99%AF\"><\/span><strong>\u9700\u6c42\u573a\u666f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>coming\uff0c\u9700\u6c42\u573a\u666f\u6bd4\u8f83\u7b80\u5355\uff0c\u5c31\u662f\u6d88\u8d39\u4e0a\u6e38\u7684\u4e00\u4e2a\u57cb\u70b9\u65e5\u5fd7\u6570\u636e\u6e90\uff0c\u6839\u636e\u57cb\u70b9\u4e2d\u7684 id \u7edf\u8ba1\u5f53\u5929 0 \u70b9\u81f3\u5f53\u524d\u65f6\u523b\u7684\u7d2f\u8ba1 uv\uff0c\u6309\u7167\u5206\u949f\u7ea7\u522b\u4ea7\u51fa\u5230\u4e0b\u6e38 OLAP \u5f15\u64ce\u4e2d\u8fdb\u884c\u7b80\u5355\u7684\u805a\u5408\uff0c\u6700\u540e\u5728 BI \u770b\u677f\u8fdb\u884c\u5c55\u793a\uff0c\u6ca1\u6709\u4efb\u4f55\u7ef4\u5ea6\u5b57\u6bb5\uff08\u611f\u52a8\u5230\u54ed \uff09\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%95%B0%E6%8D%AE%E9%93%BE%E8%B7%AF%E4%BB%A5%E5%8F%8A%E7%BB%84%E4%BB%B6%E9%80%89%E5%9E%8B\"><\/span><strong>\u6570\u636e\u94fe\u8def\u4ee5\u53ca\u7ec4\u4ef6\u9009\u578b<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u5ba2\u6237\u7aef\u7528\u6237\u884c\u4e3a\u57cb\u70b9\u65e5\u5fd7 -&gt; logServer -&gt; kafka -&gt; flink\uff08sql\uff09 -&gt; kafka -&gt; druid -&gt; BI \u770b\u677f\u3002<\/p>\n\n\n\n<p>\u5b9e\u73b0\u65b9\u6848\u4ee5\u53ca\u5177\u4f53\u7684\u5b9e\u73b0\u65b9\u5f0f\u5f88\u591a\uff0c\u8fd9\u6b21\u4f7f\u7528\u7684\u662f sql API\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"flink_sql_schema\"><\/span><strong>flink sql schema<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>source \u548c sink \u8868 schema \u5982\u4e0b\uff08\u53ea\u4fdd\u7559\u5173\u952e\u5b57\u6bb5\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--------------- \u4f2a\u4ee3\u7801 ---------------\nCREATE TABLE kafka_sink_table (\n  -- \u5929\u7ea7\u522b\u7a97\u53e3\u5f00\u59cb\u65f6\u95f4\n  window_start BIGINT,\n  -- \u5f53\u524d\u8bb0\u5f55\u5904\u7406\u7684\u65f6\u95f4\n  current_ts BIGINT,\n  -- \u6bcf\u4e2a\u6876\u5185\u7684 uv\uff08\u5904\u7406\u8fc7\u7a0b\u5bf9 id \u8fdb\u884c\u4e86\u5206\u6876\uff09\n  part_daily_full_uv BIGINT\n) WITH (\n -- ... \n);\n\nCREATE TABLE kafka_source_table (\n  -- ... \n  -- \u9700\u8981\u8fdb\u884c uv \u8ba1\u7b97\u7684 id\n  id BIGINT,\n  -- \u5904\u7406\u65f6\u95f4\n  proctime AS PROCTIME()\n) WITH (\n  -- ... \n);\n--------------- \u4f2a\u4ee3\u7801 ---------------\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"flink_sql_transform\"><\/span><strong>flink sql transform<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>--------------- \u4f2a\u4ee3\u7801 ---------------\nINSERT INTO\n  kafka_sink_table\nSELECT\n  -- \u7a97\u53e3\u5f00\u59cb\u65f6\u95f4\n  CAST(\n    TUMBLE_START(proctime, INTERVAL '1' DAY) AS bigint\n  ) AS window_start,\n  -- \u5f53\u524d\u8bb0\u5f55\u5904\u7406\u7684\u65f6\u95f4\n  cast(max(proctime) AS BIGINT) AS current_ts,\n  -- \u6bcf\u4e2a\u6876\u5185\u7684 uv\n  count(DISTINCT id) AS part_daily_full_uv\nFROM\n  kafka_source_table\nGROUP BY\n  mod(id, bucket_number),\n  -- bucket_number \u4e3a\u5e38\u6570\uff0c\u6839\u636e\u5177\u4f53\u573a\u666f\u6307\u5b9a\u5177\u4f53\u6570\u503c\n  TUMBLE(proctime, INTERVAL '1' DAY)\n--------------- \u4f2a\u4ee3\u7801 ---------------\n<\/code><\/pre>\n\n\n\n<p>\u4f7f\u7528 early-fire \u673a\u5236\uff08\u540c DataStream API \u4e2d\u7684 ContinuousProcessingTimeTrigger\uff09\uff0c\u5e76\u8bbe\u5b9a\u89e6\u53d1\u95f4\u9694\u4e3a 60 s\u3002<\/p>\n\n\n\n<p>\u5728\u4e0a\u8ff0\u5b9e\u73b0 sql \u4e2d\uff0c\u6211\u4eec\u5bf9 id \u8fdb\u884c\u4e86\u5206\u6876\uff0c\u90a3\u4e48\u6bcf\u5206\u949f\u8f93\u51fa\u7684\u6570\u636e\u6761\u6570\u5373\u4e3a bucket_number \u6761\uff0c\u6700\u7ec8\u5728 druid \u4e2d\u6309\u7167\u5206\u949f\u7c92\u5ea6\u5c06\u6240\u6709\u6876\u7684\u6570\u636e\u8fdb\u884c sum \u805a\u5408\uff0c\u5373\u53ef\u5f97\u5230\u4ece\u5f53\u5929 0 \u70b9\u7d2f\u8ba1\u5230\u5f53\u524d\u5206\u949f\u7684\u5168\u91cf uv\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%97%B6%E5%8C%BA%E9%97%AE%E9%A2%98\"><\/span><strong>\u65f6\u533a\u95ee\u9898<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<blockquote class=\"wp-block-quote\">\n<p>\u275d \u6fc0\u60c5\u573a\u666f\u8fd8\u539f\uff1a<br><strong>\u300c\u5934\u6587\u5b57 \u2229 \u6280\u672f\u5c0f\u54e5\u54e5\u300d<\/strong>\uff1a\u4f7f\u7528 sql\uff0ceasy game\uff0c\u95f2\u5750\u6478\u9c7c&#8230;<br><strong>\u300c\u5934\u6587\u5b57 \u2229 \u6280\u672f\u5c0f\u54e5\u54e5\u300d<\/strong>\uff1a\u7b49\u5230&nbsp;<strong>\u300c00:00\u300d<\/strong>&nbsp;\u65f6\uff0c\u53d1\u73b0\u6307\u6807\u8fd8\u5728\u4e0d\u505c\u5730\u5f80\u4e0a\u6da8\uff0c\u96be\u9053\u662f sql \u903b\u8f91\u9519\u4e86\uff0c\u4e0d\u5e94\u8be5\u554a\uff0c\u8bd5\u8fc7\u5206\u949f\uff0c\u5c0f\u65f6\u7ea7\u522b\u7a97\u53e3\u90fd\u6728\u6709\u8fd9\u4e2a\u95ee\u9898<br><strong>\u300c\u5934\u6587\u5b57 \u2229 \u6280\u672f\u5c0f\u54e5\u54e5\u300d<\/strong>\uff1a\u62a0\u5934ing\uff0c\u7b97\u4e86\uff0c\u7a0d\u540e\u518d\u5206\u6790\u8fd9\u4e2a\u95ee\u9898\u5427\uff0c\u73b0\u5728\u8fd8\u6709\u6b63\u4e8b\u8981\u5e72<br><strong>\u300c\u5934\u6587\u5b57 \u2229 \u6280\u672f\u5c0f\u54e5\u54e5\u300d<\/strong>\uff1a\u5230\u4e86\u65e9\u4e0a\uff0c\u7785\u4e86\u4e00\u773c\u914d\u7f6e\u7684\u65f6\u95f4\u5e8f\u5217\u62a5\u8868\uff0c\u53d1\u73b0\u5728&nbsp;<strong>\u300c08:00\u300d<\/strong>&nbsp;\u70b9\u7684\u65f6\u5019\u6307\u6807\u5f52\u96f6\uff0c\u91cd\u65b0\u5f00\u59cb\u7d2f\u8ba1\u3002\u60f3\u6cd5\u4e00\u95ea\u800c\u8fc7\uff0c\u4e1c\u516b\u533a\uff1f\uff08\u5f53\u65f6\u4e3a\u5565\u6ca1 format \u4e0b sink \u6570\u636e\u4e2d\u7684 window_start&#8230;\uff09<br>\u275e<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3%E9%97%AE%E9%A2%98%E5%AE%9A%E4%BD%8D\"><\/span><strong>3.\u95ee\u9898\u5b9a\u4f4d<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E9%97%AE%E9%A2%98%E8%AF%B4%E6%98%8E\"><\/span><strong>\u95ee\u9898\u8bf4\u660e<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>flink \u5728\u4f7f\u7528\u65f6\u95f4\u7684\u8fd9\u4e2a\u6982\u5ff5\u7684\u65f6\u5019\u662f\u57fa\u4e8e java \u65f6\u95f4\u7eaa\u5143\uff08\u5373\u683c\u6797\u5a01\u6cbb 1970\/01\/01 00:00:00\uff0c\u4e5f\u5373 Unix \u65f6\u95f4\u6233\u4e3a 0\uff09\u6982\u5ff5\u7684\uff0c\u7a97\u53e3\u5bf9\u9f50\u4ee5\u53ca\u89e6\u53d1\u4e5f\u662f\u57fa\u4e8e java \u65f6\u95f4\u7eaa\u5143[1]\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E9%97%AE%E9%A2%98%E5%9C%BA%E6%99%AF%E5%A4%8D%E7%8E%B0\"><\/span><strong>\u95ee\u9898\u573a\u666f\u590d\u73b0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u53ef\u4ee5\u901a\u8fc7\u76f4\u63a5\u67e5\u770b sink \u6570\u636e\u7684 window_start \u5f97\u51fa\u4e0a\u8ff0\u7ed3\u8bba\u3002<\/p>\n\n\n\n<p>\u4f46\u4e3a\u4e86\u8fd8\u539f\u6574\u4e2a\u8fc7\u7a0b\uff0c\u6211\u4eec\u6309\u7167\u5982\u4e0b source \u548c sink \u6570\u636e\u8fdb\u884c\u6574\u4e2a\u95ee\u9898\u7684\u590d\u73b0\uff1a<\/p>\n\n\n\n<p>source \u6570\u636e\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p>ble<strong>&nbsp;data-dr<\/strong>a<strong>ft-node=&#8221;block&#8221; data-draft-t<\/strong>y<strong>pe=&#8221;table&#8221; data-size=&#8221;norm<\/strong>al&#8221; data-row-style=&#8221;normal&#8221;&gt;<\/p>\n\n\n\n<p>sink \u6570\u636e\uff08<strong>\u300c\u4e3a\u4e86\u65b9\u4fbf\u7406\u89e3\uff0c\u76f4\u63a5\u6309\u7167 druid \u805a\u5408\u4e4b\u540e\u7684\u6570\u636e\u5c55\u793a\u300d<\/strong>\uff09\uff1a<\/p>\n\n\n\n<p>ble data-draf<strong>t-node=&#8221;bl<\/strong>o<strong>ck&#8221; data-draft-typ<\/strong>e<strong>=&#8221;table&#8221; data-size=&#8221;normal&#8221; dat<\/strong>a<strong>-row-style=&#8221;normal&#8221;&gt;<\/strong><\/p>\n\n\n\n<p>\u4ece\u4e0a\u8ff0\u6570\u636e\u53ef\u4ee5\u53d1\u73b0\uff0c\u5929\u7ea7\u522b\u7a97\u53e3<strong>\u300c\u5f00\u59cb\u65f6\u95f4\u300d<\/strong>\u5728 UTC + 8\uff08\u5317\u4eac\uff09\u7684\u65f6\u533a\u662f\u6bcf\u5929\u65e9\u4e0a 8 \u70b9\uff0c\u5373 UTC + 0\uff08\u683c\u6797\u5a01\u6cbb\uff09\u7684\u51cc\u6668 0 \u70b9\u3002<\/p>\n\n\n\n<p><strong>\u300c\u4e0b\u6587\u5148\u7ed9\u51fa\u89e3\u51b3\u65b9\u6848\uff0c\u7136\u540e\u8be6\u7ec6\u89e3\u6790\u5404\u4e2a\u65f6\u95f4\u4ee5\u53ca\u65f6\u533a\u6982\u5ff5~\u300d<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%A7%A3%E5%86%B3%E6%96%B9%E6%A1%88-2\"><\/span><strong>\u89e3\u51b3\u65b9\u6848<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul>\n<li><strong>\u300c\u6846\u67b6\u5c42\u9762\u89e3\u51b3\u300d<\/strong>\uff1aBlink Planner \u652f\u6301\u65f6\u533a\u8bbe\u7f6e[2]<\/li>\n\n\n\n<li><strong>\u300csql\u5c42\u9762\u89e3\u51b3\u300d<\/strong>\uff1a\u4ece sql \u5b9e\u73b0\u5c42\u9762\u7ed9\u51fa\u89e3\u51b3\u65b9\u6848<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"sql_%E5%B1%82%E9%9D%A2%E8%A7%A3%E5%86%B3%E6%96%B9%E6%A1%88\"><\/span><strong>sql \u5c42\u9762\u89e3\u51b3\u65b9\u6848<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>--------------- \u4f2a\u4ee3\u7801 ---------------\nCREATE VIEW view_table AS\nSELECT\n   id,\n   -- \u901a\u8fc7\u6ce8\u5165\u65f6\u95f4\u89e3\u51b3\n   -- \u52a0\u4e0a\u4e1c\u516b\u533a\u7684\u65f6\u95f4\u504f\u79fb\u91cf\uff0c\u8bbe\u7f6e\u6ce8\u5165\u65f6\u95f4\u4e3a\u65f6\u95f4\u6233\u5217\n   CAST(CURRENT_TIMESTAMP AS BIGINT) * 1000 + 8 * 60 * 60 * 1000 as ingest_time\nFROM \n   source_table;\n\nINSERT INTO\n  target_table\nSELECT\n  CAST(\n    TUMBLE_START(ingest_time, INTERVAL '1' DAY) AS bigint\n  ) AS window_start,\n  cast(max(ingest_time) AS BIGINT) - 8 * 3600 * 1000 AS current_ts,\n  count(DISTINCT id) AS part_daily_full_uv\nFROM\n  view_table\nGROUP BY\n  mod(id, 1024),\n   -- \u6839\u636e\u6ce8\u5165\u65f6\u95f4\u5212\u5206\u5929\u7ea7\u522b\u7a97\u53e3\n  TUMBLE(ingest_time, INTERVAL '1' DAY)\n--------------- \u4f2a\u4ee3\u7801 ---------------\n<\/code><\/pre>\n\n\n\n<p>\u6211\u76ee\u524d\u6240\u5c5e\u7684\u65f6\u533a\u662f\u4e1c\u516b\u533a\uff08\u5317\u4eac\u65f6\u95f4\uff09\uff0c\u901a\u8fc7\u4e0a\u8ff0 sql\uff0c\u8bbe\u7f6e\u6ce8\u5165\u65f6\u95f4\uff0c\u5e76\u5bf9\u6ce8\u5165\u65f6\u95f4\u52a0\u4e0a 8 \u5c0f\u65f6\u7684\u504f\u79fb\u91cf\u8fdb\u884c\u5929\u7ea7\u522b\u7a97\u53e3\u7684\u5212\u5206\uff0c\u5c31\u53ef\u4ee5\u5bf9\u6b64\u95ee\u9898\u8fdb\u884c\u89e3\u51b3\uff08\u4e5f\u53ef\u4ee5\u5728 create table \u65f6\uff0c\u5728 schema \u4e2d\u6839\u636e\u8ba1\u7b97\u5217\u6dfb\u52a0\u5bf9\u5e94\u7684\u6ce8\u5165\u65f6\u95f4\u6233\u8fdb\u884c\u89e3\u51b3\uff09\u3002\u5982\u679c\u4f60\u5728 sql \u5c42\u9762\u6709\u66f4\u597d\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u6b22\u8fce\u8ba8\u8bba~<\/p>\n\n\n\n<blockquote class=\"wp-block-quote\">\n<p>\u275d Notes\uff1a<\/p>\n<\/blockquote>\n\n\n\n<ul>\n<li><strong>\u300c\u4e1c n \u533a\u7684\u89e3\u51b3\u65b9\u6848\u5c31\u662f\u65f6\u95f4\u6233 +n * 3600 \u79d2\u7684\u504f\u79fb\u91cf\uff0c\u897f n \u533a\u7684\u89e3\u51b3\u65b9\u6848\u5c31\u662f\u65f6\u95f4\u6233 -n * 3600 \u79d2\u7684\u504f\u79fb\u91cf\u300d<\/strong><\/li>\n\n\n\n<li><strong>\u300cDataStream API \u5b58\u5728\u76f8\u540c\u7684\u5929\u7ea7\u522b\u7a97\u53e3\u65f6\u533a\u95ee\u9898\u300d<\/strong><\/li>\n<\/ul>\n\n\n\n<p>\u275e<\/p>\n\n\n\n<p>\u8fd9\u91cc\u63d0\u51fa\u4e00\u4e2a\u95ee\u9898\uff0c\u4e3a\u4ec0\u4e48\u4e1c\u516b\u533a\u662f\u9700\u8981\u5728\u65f6\u95f4\u6233\u4e0a\u52a0 8 \u5c0f\u65f6\u504f\u79fb\u91cf\u8fdb\u884c\u5929\u7ea7\u522b\u7a97\u53e3\u8ba1\u7b97\uff0c\u800c\u4e0d\u662f\u51cf 8 \u5c0f\u65f6\u6216\u662f\u52a0\u4e0a 32\uff0824 + 8\uff09 \u5c0f\u65f6\uff0c\u5c0f\u4f19\u4f34\u4eec\u6709\u8be6\u7ec6\u5206\u6790\u8fc7\u561b~<\/p>\n\n\n\n<p>\u6839\u636e\u4e0a\u8ff0\u95ee\u9898\uff0c\u5f15\u51fa\u672c\u6587\u7684\u7b2c\u4e8c\u5927\u90e8\u5206\uff0c\u5373\u6df1\u5ea6\u89e3\u6790\u65f6\u533a\u504f\u79fb\u91cf\u95ee\u9898\uff0c\u8fd9\u90e8\u5206\u53ef\u4ee5\u4f5c\u4e3a\u6240\u6709\u65f6\u533a\u95ee\u9898\u7684\u5206\u6790\u601d\u8def\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4%E4%B8%BA%E4%BB%80%E4%B9%88%E4%B8%9C%E5%85%AB%E5%8C%BA%E6%98%AF%E5%8A%A0_8_%E5%B0%8F%E6%97%B6%EF%BC%9F\"><\/span><strong>4.\u4e3a\u4ec0\u4e48\u4e1c\u516b\u533a\u662f\u52a0 8 \u5c0f\u65f6\uff1f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%97%B6%E9%97%B4%E5%92%8C%E6%97%B6%E5%8C%BA%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5\"><\/span><strong>\u65f6\u95f4\u548c\u65f6\u533a\u57fa\u672c\u6982\u5ff5<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>\u300c\u65f6\u533a[3]\u300d<\/strong>\uff1a\u7531\u4e8e\u4e16\u754c\u5404\u56fd\u5bb6\u4e0e\u5730\u533a\u7ecf\u5ea6\u4e0d\u540c\uff0c\u5730\u65b9\u65f6\u4e5f\u6709\u6240\u4e0d\u540c\uff0c\u56e0\u6b64\u4f1a\u5212\u5206\u4e3a\u4e0d\u540c\u7684\u65f6\u533a\u3002<\/p>\n\n\n\n<p><strong>\u300cUnix \u65f6\u95f4\u6233(Unix timestamp)[4]\u300d<\/strong>\uff1a Unix \u65f6\u95f4\u6233(Unix timestamp)\uff0c\u6216\u79f0 Unix \u65f6\u95f4(Unix time)\u3001POSIX \u65f6\u95f4(POSIX time)\uff0c\u662f\u4e00\u79cd\u65f6\u95f4\u8868\u793a\u65b9\u5f0f\uff0c\u5b9a\u4e49\u4e3a\u4ece\u683c\u6797\u5a01\u6cbb\u65f6\u95f4 1970 \u5e74 01 \u6708 01 \u65e5 00 \u65f6 00 \u5206 00 \u79d2\uff08UTC\/GMT\u7684\u5348\u591c\uff09\u8d77\u81f3\u73b0\u5728\u7684\u603b\u79d2\u6570\u3002 Unix \u65f6\u95f4\u6233\u4e0d\u4ec5\u88ab\u4f7f\u7528\u5728 Unix \u7cfb\u7edf\u3001\u7c7b Unix \u7cfb\u7edf\u4e2d\uff0c\u4e5f\u5728\u8bb8\u591a\u5176\u4ed6\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u88ab\u5e7f\u6cdb\u91c7\u7528\u3002<\/p>\n\n\n\n<p><strong>\u300cGMT\u300d<\/strong>\uff1aGreenwich Mean Time \u683c\u6797\u5a01\u6cbb\u6807\u51c6\u65f6\u95f4\u3002\u8fd9\u662f\u4ee5\u82f1\u56fd\u683c\u6797\u5a01\u6cbb\u5929\u6587\u53f0\u89c2\u6d4b\u7ed3\u679c\u5f97\u51fa\u7684\u65f6\u95f4\uff0c\u8fd9\u662f\u82f1\u56fd\u683c\u6797\u5a01\u6cbb\u5f53\u5730\u65f6\u95f4\uff0c\u8fd9\u4e2a\u5730\u65b9\u7684\u5f53\u5730\u65f6\u95f4\u8fc7\u53bb\u88ab\u5f53\u6210\u4e16\u754c\u6807\u51c6\u7684\u65f6\u95f4\u3002<\/p>\n\n\n\n<p><strong>\u300cUT\u300d<\/strong>\uff1aUniversal Time \u4e16\u754c\u65f6\u3002\u6839\u636e\u539f\u5b50\u949f\u8ba1\u7b97\u51fa\u6765\u7684\u65f6\u95f4\u3002<\/p>\n\n\n\n<p><strong>\u300cUTC\u300d<\/strong>\uff1aCoordinated Universal Time \u534f\u8c03\u4e16\u754c\u65f6\u3002\u56e0\u4e3a\u5730\u7403\u81ea\u8f6c\u8d8a\u6765\u8d8a\u6162\uff0c\u6bcf\u5e74\u90fd\u4f1a\u6bd4\u524d\u4e00\u5e74\u591a\u51fa\u96f6\u70b9\u51e0\u79d2\uff0c\u6bcf\u9694\u51e0\u5e74\u534f\u8c03\u4e16\u754c\u65f6\u7ec4\u7ec7\u90fd\u4f1a\u7ed9\u4e16\u754c\u65f6 +1 \u79d2\uff0c\u8ba9\u57fa\u4e8e\u539f\u5b50\u949f\u7684\u4e16\u754c\u65f6\u548c\u57fa\u4e8e\u5929\u6587\u5b66\uff08\u4eba\u7c7b\u611f\u77e5\uff09\u7684\u683c\u6797\u5a01\u6cbb\u6807\u51c6\u65f6\u95f4\u76f8\u5dee\u4e0d\u81f3\u4e8e\u592a\u5927\u3002\u5e76\u5c06\u5f97\u5230\u7684\u65f6\u95f4\u79f0\u4e3a UTC\uff0c\u8fd9\u662f\u73b0\u5728\u4f7f\u7528\u7684\u4e16\u754c\u6807\u51c6\u65f6\u95f4\u3002 \u534f\u8c03\u4e16\u754c\u65f6\u4e0d\u4e0e\u4efb\u4f55\u5730\u533a\u4f4d\u7f6e\u76f8\u5173\uff0c\u4e5f\u4e0d\u4ee3\u8868\u6b64\u523b\u67d0\u5730\u7684\u65f6\u95f4\uff0c\u6240\u4ee5\u5728\u8bf4\u660e\u67d0\u5730\u65f6\u95f4\u65f6\u8981\u52a0\u4e0a\u65f6\u533a\u4e5f\u5c31\u662f\u8bf4 GMT \u5e76\u4e0d\u7b49\u4e8e UTC\uff0c\u800c\u662f\u7b49\u4e8e UTC + 0\uff0c\u53ea\u662f\u683c\u6797\u5a01\u6cbb\u521a\u597d\u5728 0 \u65f6\u533a\u4e0a\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%99%BD%E8%AF%9D%E6%97%B6%E9%97%B4%E5%92%8C%E6%97%B6%E5%8C%BA\"><\/span><strong>\u767d\u8bdd\u65f6\u95f4\u548c\u65f6\u533a<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u5f53\u65f6\u770b\u5b8c\u8fd9\u4e00\u7cfb\u5217\u7684\u65f6\u95f4\u4ee5\u53ca\u65f6\u533a\u8bf4\u660e\u4e4b\u540e\u6211\u5927\u8111\u5176\u5b9e\u662f\u4e00\u7247\u7a7a\u767d\u3002&#8230;ojbk&#8230;\uff0c\u6211\u7528\u81ea\u5df1\u73b0\u5728\u7684\u4e00\u4e9b\u7406\u89e3\uff0c\u5c1d\u8bd5\u5c06\u4e0a\u8ff0\u6240\u6709\u6d89\u53ca\u5230\u65f6\u95f4\u7684\u6982\u5ff5\u89e3\u91ca\u4e00\u4e0b\u3002<\/p>\n\n\n\n<ul>\n<li><strong>\u300cGMT\u300d<\/strong>\uff1a\u683c\u6797\u5a01\u6cbb\u6807\u51c6\u65f6\u95f4\u3002<\/li>\n\n\n\n<li><strong>\u300cUTC\u300d<\/strong>\uff1a\u57fa\u4e8e\u539f\u5b50\u949f\u534f\u8c03\u4e4b\u540e\u7684\u4e16\u754c\u6807\u51c6\u65f6\u95f4\u3002\u53ef\u4ee5\u8ba4\u4e3a UTC \u65f6\u95f4\u548c\u683c\u6797\u5a01\u6cbb\u6807\u51c6\u65f6\u95f4\u4e00\u81f4\u3002\u5373 GMT = UTC + 0\uff0c\u5176\u4e2d 0 \u4ee3\u8868\u683c\u6797\u5a01\u6cbb\u4e3a 0 \u65f6\u533a\u3002<\/li>\n\n\n\n<li><strong>\u300c\u65f6\u533a\u300d<\/strong>\uff1a\u9006\u5411\u601d\u7ef4\u6765\u89e3\u91ca\u4e0b\uff08\u53ea\u4ece\u6280\u672f\u5c42\u9762\u89e3\u91ca\uff0c\u4e0d\u4ece\u5176\u4ed6\u590d\u6742\u5c42\u9762\u89e3\u91ca\uff09\uff0c\u6ca1\u6709\u65f6\u533a\u5212\u5206\u4ee3\u8868\u7740\u5168\u4e16\u754c\u90fd\u662f\u540c\u4e00\u65f6\u533a\uff0c\u90a3\u4e48\u540c\u4e00\u65f6\u523b\u770b\u5230\u7684\u5916\u663e\u65f6\u95f4\u662f\u4e00\u6837\u7684\u3002\u4e3e\u4e2a \uff1a\u5047\u5982\u5168\u4e16\u754c\u90fd\u6309\u7167\u683c\u6797\u5a01\u6cbb\u65f6\u95f4\u4f5c\u4e3a\u7edf\u4e00\u65f6\u95f4\uff0c\u5728\u683c\u6797\u5a01\u6cbb\u65f6\u95f4 0 \u70b9\u65f6\uff0c\u5bf9\u4e8e\u5317\u4eac\u548c\u52a0\u62ff\u5927\u7684\u4e24\u4e2a\u540c\u5b66\u6765\u8bf4\uff0c\u8fd9\u4e24\u4e2a\u540c\u5b66\u611f\u77e5\u5230\u7684\u662f\u5317\u4eac\u662f\u592a\u9633\u521a\u521a\u5347\u8d77\uff08\u6e05\u6668\uff09\uff0c\u52a0\u62ff\u5927\u662f\u592a\u9633\u521a\u521a\u843d\u4e0b\uff08\u508d\u665a\uff09\u3002 \u4f46\u662f\u7531\u4e8e\u6ca1\u6709\u65f6\u533a\u5212\u5206\uff0c\u8fd9\u4e24\u4e2a\u540c\u5b66\u770b\u5230\u7684\u65f6\u95f4\u90fd\u662f 0 \u70b9\uff0c\u56e0\u6b64\u8fd9\u662f\u4e0d\u7b26\u5408\u4eba\u7c7b\u5bf9<strong>\u300c\u611f\u77e5\u5230\u7684\u65f6\u95f4\u300d<\/strong>\u548c\u81ea\u5df1<strong>\u300c\u770b\u5230\u7684\u65f6\u95f4\u300d<\/strong>\u7684\u7406\u89e3\u7684\u3002\u6240\u4ee5\u5212\u5206\u65f6\u533a\u4e4b\u540e\uff0c\u53ef\u4ee5\u6ee1\u8db3\u5317\u4eac\uff08\u4e1c\u516b\u533a UTC + 8\uff09\u540c\u5b66\u770b\u5230\u7684\u65f6\u95f4\u662f\u4e0a\u5348 8 \u70b9\uff0c\u52a0\u62ff\u5927\uff08\u897f\u56db\u533a UTC &#8211; 4\uff09\u540c\u5b66\u770b\u5230\u7684\u65f6\u95f4\u662f\u4e0b\u5348 8 \u70b9\u3002\u6ce8\u610f\u65f6\u533a\u7684\u5212\u5206\u662f\u548c UTC \u7ed1\u5b9a\u7684\u3002\u4e1c\u516b\u533a\u5373 UTC + 8\u3002<\/li>\n\n\n\n<li><strong>\u300cflink \u65f6\u95f4\u300d<\/strong>\uff1aflink \u4f7f\u7528\u7684\u65f6\u95f4\u57fa\u4e8e java \u65f6\u95f4\u7eaa\u5143\uff08GMT 1970\/01\/01 00:00:00\uff0cUTC + 0 1970\/01\/01 00:00:00\uff09\u3002<\/li>\n\n\n\n<li><strong>\u300cUnix \u65f6\u95f4\u6233\u300d<\/strong>\uff1a\u4e16\u754c\u4e0a\u4efb\u4f55\u4e00\u4e2a\u5730\u65b9\uff0c\u540c\u65f6\u63a5\u6536\u5230\u7684\u6570\u636e\u7684\u5bf9\u5e94\u7684 Unix \u65f6\u95f4\u6233\u90fd\u662f\u76f8\u540c\u7684\uff0c\u7c7b\u4f3c\u65f6\u533a\u4e2d\u6211\u4eec\u4e3e\u7684\u4e0d\u5206\u65f6\u533a\u7684 \uff0c\u5168\u4e16\u754c\u540c\u4e00\u65f6\u523b\u7684 Unix \u65f6\u95f4\u6233\u4e00\u81f4\u3002<\/li>\n\n\n\n<li><strong>\u300cUnix \u65f6\u95f4\u6233\u4e3a 0\u300d<\/strong>\uff1a\u5bf9\u5e94\u7684\u683c\u6797\u5a01\u6cbb\u65f6\u95f4\uff1a1970-01-01 00:00:00\uff0c\u5bf9\u5e94\u7684\u5317\u4eac\u65f6\u95f4\uff08\u4e1c\u516b\u533a\uff09\uff1a1970-01-01 08:00:00**<\/li>\n<\/ul>\n\n\n\n<p>\u6982\u5ff5\u5173\u7cfb\u5982\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic1.zhimg.com\/80\/v2-58393831ef83be053d9e585e9faad568_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E4%B8%BA%E4%BB%80%E4%B9%88%E4%B8%9C%E5%85%AB%E5%8C%BA%E6%98%AF%E5%8A%A0_8_%E5%B0%8F%E6%97%B6%EF%BC%9F\"><\/span><strong>\u4e3a\u4ec0\u4e48\u4e1c\u516b\u533a\u662f\u52a0 8 \u5c0f\u65f6\uff1f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u4e0b\u8ff0\u8868\u683c\u53ea\u5bf9\u4e00\u4e9b\u91cd\u8981\u7684\u65f6\u95f4\u8fdb\u884c\u4e86\u6807\u6ce8\uff1a<\/p>\n\n\n\n<p>ble data-<strong>draft-node<\/strong>=<strong>&#8220;block&#8221;&nbsp;<\/strong>data-draft-type=&#8221;table&#8221; data-size=&#8221;normal&#8221; data-row-style=&#8221;normal&#8221;&gt;<\/p>\n\n\n\n<p>\u62ff\u7b2c\u4e00\u6761\u6570\u636e\u89e3\u91ca\u4e0b\uff0c\u5176\u4ee3\u8868\u5728\u5317\u4eac\u65f6\u95f4 1970\/01\/01 00:00:00 \u65f6\uff0c\u751f\u6210\u7684\u4e00\u6761\u6570\u636e\u6240\u643a\u5e26\u7684 Unix \u65f6\u95f4\u6233\u4e3a -8 * 3600\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/pic3.zhimg.com\/80\/v2-c43ed217cec9c8dbb3c55d6569159236_720w.webp\" alt=\"\"\/><\/figure>\n\n\n\n<p>\u6839\u636e\u9700\u6c42\u548c\u4e0a\u56fe\u548c\u4e0a\u8ff0\u8868\u683c\u5185\u5bb9\uff0c\u6211\u4eec\u53ef\u4ee5\u5f97\u5230\u5982\u4e0b\u63a8\u5bfc\u8fc7\u7a0b\uff1a<\/p>\n\n\n\n<ul>\n<li>\u9700\u6c42\u573a\u666f\u662f\u7edf\u8ba1\u4e00\u4e2a\u6574\u5929\u7684 uv\uff0c\u5373\u5929\u7ea7\u522b\u7a97\u53e3\uff0c\u6bd4\u5982\u7edf\u8ba1\u5317\u4eac\u65f6\u95f4 1970\/01\/01 00:00:00 &#8211; 1970\/01\/02 00:00:00 \u8303\u56f4\u7684\u6570\u636e\u65f6\uff0c\u8fd9\u4e2a\u65e5\u671f\u8303\u56f4\u5185\u7684\u6570\u636e\u6240\u643a\u5e26\u7684 Unix \u65f6\u95f4\u6233\u8303\u56f4\u4e3a -8 * 3600 \u5230 16 * 3600<\/li>\n\n\n\n<li>\u5bf9\u4e8e flink \u6765\u8bf4\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u5b83\u6240\u80fd\u7edf\u8ba1\u7684\u4e00\u4e2a\u6574\u5929\u7684 Unix \u65f6\u95f4\u6233\u7684\u8303\u56f4\u662f 0 \u5230 24 * 3600<\/li>\n\n\n\n<li>\u6240\u4ee5\u5f53\u6211\u4eec\u60f3\u901a\u8fc7 flink \u5b9e\u73b0\u6b63\u786e\u7edf\u8ba1\u5317\u4eac\u65f6\u95f4\uff081970\/01\/01 00:00:00 &#8211; 1970\/01\/02 00:00:00\uff09\u8303\u56f4\u5185\u7684\u6570\u636e\u65f6\uff0c\u5373\u7edf\u8ba1 Unix \u65f6\u95f4\u6233\u4e3a -8 * 3600 \u5230 16 * 3600 \u7684\u6570\u636e\u65f6\uff0c\u5c31\u9700\u8981\u5bf9\u65f6\u95f4\u6233\u505a\u4e2a\u6620\u5c04\u3002<\/li>\n\n\n\n<li>\u6620\u5c04\u65b9\u6cd5\u5982\u4e0b\uff0c\u5c31\u662f\u5c06\u6574\u4f53\u8303\u56f4\u5185\u7684\u65f6\u95f4\u6233\u505a\u5728\u65f6\u95f4\u8f74\u4e0a\u505a\u5e73\u79fb\u6620\u5c04\uff0c\u5c31\u662f\u628a -8 * 3600 \u6620\u5c04\u5230 0\uff0c16 * 3600 \u6620\u5c04\u5230 24 * 3600\u3002\u76f8\u5f53\u4e8e\u662f\u5bf9\u5317\u4eac\u65f6\u95f4\u7684 Unix \u65f6\u95f4\u6233\u6574\u4f53\u52a0 8 * 3600\u3002<\/li>\n\n\n\n<li>\u6700\u540e\u5728\u4ea7\u51fa\u7684\u65f6\u95f4\u6233\u4e0a\u628a\u52a0\u4e0a\u7684 8 \u5c0f\u65f6\u518d\u51cf\u6389\uff08\u56e0\u4e3a\u5916\u663e\u65f6\u95f4\u4f1a\u81ea\u52a8\u6309\u7167\u65f6\u533a\u5bf9 Unix \u65f6\u95f4\u6233\u8fdb\u884c\u683c\u5f0f\u5316\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote\">\n<p>\u275d Notes\uff1a<\/p>\n<\/blockquote>\n\n\n\n<ul>\n<li><strong>\u300c\u53ef\u4ee5\u52a0 32 \u5c0f\u65f6\u5417\uff1f\u7b54\u6848\u662f\u53ef\u4ee5\u3002\u5728\u4e1c\u516b\u533a\uff0c\u5bf9\u4e8e\u5929\u7ea7\u522b\u7a97\u53e3\u7684\u5212\u5206\uff0c\u52a0 8 \u5c0f\u65f6\u548c\u52a0 8 + n * 24\uff08\u5176\u4e2d n \u4e3a\u6574\u6570\uff09\u5c0f\u65f6\u540e\u8fdb\u884c\u7684\u5929\u7ea7\u522b\u7a97\u53e3\u5212\u5206\u548c\u8ba1\u7b97\u7684\u6548\u679c\u662f\u4e00\u6837\u7684\uff0cflink \u90fd\u4f1a\u5c06\u4e1c\u516b\u533a\u7684\u6574\u4e00\u5929\u5185\u7684\u6570\u636e\u5212\u5206\u5230\u4e00\u4e2a\u5929\u7ea7\u522b\u7a97\u53e3\u5185\u3002\u6240\u4ee5\u52a0 32\uff088 + 24\uff09\uff0c56\uff088 + 48\uff09\uff0c-16\uff088 &#8211; 24\uff09\u5c0f\u65f6\u6548\u679c\u90fd\u76f8\u540c\uff0c\u4e0a\u8ff0\u4f8b\u5b50\u53ea\u662f\u9009\u62e9\u4e86\u65f6\u95f4\u8f74\u5e73\u79fb\u6700\u5c0f\u7684\u8ddd\u79bb\uff0c\u5373 8 \u5c0f\u65f6\u3002\u6ce8\u610f\u67d0\u4e9b\u7cfb\u7edf\u7684 Unix \u65f6\u95f4\u6233\u4e3a\u8d1f\u503c\u65f6\u4f1a\u51fa\u73b0\u5f02\u5e38\u3002\u300d<\/strong><\/li>\n\n\n\n<li><strong>\u300c\u6b64\u63a8\u7406\u8fc7\u7a0b\u9002\u7528\u4e8e\u6240\u6709\u9047\u5230\u65f6\u533a\u95ee\u9898\u7684\u573a\u666f\uff0c\u5982\u679c\u4f60\u4e5f\u6709\u5176\u4ed6\u5e94\u7528\u573a\u666f\u6709\u8fd9\u4e2a\u95ee\u9898\uff0c\u4e5f\u53ef\u4ee5\u6309\u7167\u4e0a\u8ff0\u65b9\u5f0f\u89e3\u51b3\u300d<\/strong><\/li>\n<\/ul>\n\n\n\n<p>\u275e<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Appendix\"><\/span><strong>Appendix<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u6c42\u8f93\u5165 Unix \u65f6\u95f4\u6233\u5bf9\u5e94\u7684\u4e1c\u516b\u533a\u6bcf\u5929 0 \u70b9\u7684 Unix \u65f6\u95f4\u6233\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public static final long ONE_DAY_MILLS = 24 * 60 * 60 * 1000L;\n\npublic static long transform(long timestamp) {\n    return timestamp - (timestamp + 8 * 60 * 60 * 1000) % ONE_DAY_MILLS;\n}\n<\/code><\/pre>\n\n\n\n<p><strong>5.\u603b\u7ed3<\/strong><\/p>\n\n\n\n<p>\u672c\u6587\u9996\u5148\u4ecb\u7ecd\u4e86\u76f4\u63a5\u7ed9\u51fa\u4e86\u6211\u4eec\u7684\u95ee\u9898 sql \u548c\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n\n\n\n<p>\u7b2c\u4e8c\u8282\u4ece\u9700\u6c42\u573a\u666f\u4ee5\u53ca\u6574\u4e2a\u6570\u636e\u94fe\u8def\u7684\u5b9e\u73b0\u65b9\u6848\u51fa\u53d1\uff0c\u89e3\u91ca\u4e86\u6211\u4eec\u600e\u6837\u4f7f\u7528 flink sql \u8fdb\u884c\u4e86\u9700\u6c42\u5b9e\u73b0\uff0c\u5e76\u8fdb\u800c\u5f15\u51fa\u4e86 sql \u4e2d\u5929\u7ea7\u522b\u7a97\u53e3\u5b58\u5728\u7684\u65f6\u533a\u95ee\u9898\u3002<\/p>\n\n\n\n<p>\u7b2c\u4e09\u8282\u786e\u8ba4\u4e86\u5929\u7ea7\u522b\u7a97\u53e3\u65f6\u533a\u95ee\u9898\u539f\u56e0\uff0c\u5f15\u51fa\u4e86 flink \u4f7f\u7528\u4e86 java \u65f6\u95f4\u7eaa\u5143\uff0c\u5e76\u9488\u5bf9\u6b64\u95ee\u9898\u7ed9\u51fa\u4e86\u5f15\u64ce\u5c42\u9762\u548c sql \u5c42\u9762\u7684\u89e3\u51b3\u65b9\u6848\u3002\u4e5f\u8fdb\u800c\u63d0\u51fa\u4e86\u4e00\u4e2a\u95ee\u9898\uff1a\u4e3a\u4ec0\u4e48\u6211\u4eec\u7684\u89e3\u51b3\u65b9\u6848\u662f\u52a0 8 \u5c0f\u65f6\u504f\u79fb\u91cf\uff1f<\/p>\n\n\n\n<p>\u7b2c\u56db\u8282\u9488\u5bf9\u52a0 8 \u5c0f\u65f6\u504f\u79fb\u91cf\u7684\u539f\u56e0\u8fdb\u884c\u4e86\u5206\u6790\uff0c\u5e76\u8be6\u7ec6\u9610\u8ff0\u4e86\u65f6\u533a\uff0cUTC\uff0cGMT\uff0cUnix \u65f6\u95f4\u6233\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/p>\n\n\n\n<p>\u6700\u540e\u4e00\u8282\u5bf9\u672c\u6587\u8fdb\u884c\u4e86\u603b\u7ed3\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u4e3b\u8981\u5206\u4e3a\u4e24\u90e8\u5206\uff1a \u7b2c\u4e00\u90e8\u5206\uff08\u7b2c 1 &#8211; 3 \u8282\uff09\u7684\u5206\u6790\u4e3b\u8981\u9488\u5bf9 flink\uff0c\u5206\u6790\u4e86 &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%a4%a9%e7%ba%a7%e5%88%ab%e7%aa%97%e5%8f%a3%e4%b8%ad%e5%ad%98%e5%9c%a8%e7%9a%84%e6%97%b6%e5%8c%ba%e9%97%ae%e9%a2%98\/\" class=\"more-link read-more\" rel=\"bookmark\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">\u3010\u8fd0\u7ef4\u5de5\u5177\u3011Flink SQL\u00a0 \u5929\u7ea7\u522b\u7a97\u53e3\u4e2d\u5b58\u5728\u7684\u65f6\u533a\u95ee\u9898<\/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":939,"_links":{"self":[{"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/posts\/1308"}],"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=1308"}],"version-history":[{"count":1,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/posts\/1308\/revisions"}],"predecessor-version":[{"id":1309,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/posts\/1308\/revisions\/1309"}],"wp:attachment":[{"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/media?parent=1308"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/categories?post=1308"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/tags?post=1308"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}