{"id":3180,"date":"2021-10-29T02:09:09","date_gmt":"2021-10-29T02:09:09","guid":{"rendered":"http:\/\/www.taosdata.com.cn:88\/blog\/?p=3180"},"modified":"2022-10-17T06:49:24","modified_gmt":"2022-10-17T06:49:24","slug":"tdengine%e5%9c%a8%e5%bc%98%e6%ba%90%e6%b3%b0%e5%b9%b3%e9%87%8f%e5%8c%96%e6%8a%95%e8%b5%84%e4%b8%ad%e7%9a%84%e5%ae%9e%e8%b7%b5","status":"publish","type":"post","link":"https:\/\/www.taosdata.com\/tdengine-user-cases\/3180.html","title":{"rendered":"TDengine \u5728\u5f18\u6e90\u6cf0\u5e73\u91cf\u5316\u6295\u8d44\u4e2d\u7684\u5b9e\u8df5"},"content":{"rendered":"\n<p>\u4f5c\u8005\uff1a\u4e01\u535a<\/p>\n\n\n\n<h4><strong>\u516c\u53f8\u7b80\u4ecb<\/strong> <\/h4>\n\n\n\n<p>\u6df1\u5733\u5e02\u5f18\u6e90\u6cf0\u5e73\u8d44\u4ea7\u7ba1\u7406\u6709\u9650\u516c\u53f8\u7ec4\u5efa\u4e8e2016\u5e74\uff0c\u56e2\u961f\u6838\u5fc3\u6210\u5458\u6765\u81ea\u4e8e\u77e5\u540d\u9ad8\u6821\uff0c\u6709\u4e30\u5bcc\u7684\u8d44\u4ea7\u914d\u7f6e\u4e0e\u7b56\u7565\u6784\u5efa\u7684\u5b9e\u8df5\u7ecf\u9a8c\u3002\u5f18\u6e90\u6cf0\u5e73\u4ee5\u5957\u6225\u4ea4\u6613\u7edd\u5bf9\u6536\u76ca\u578b\u914d\u7f6e\u5de5\u5177\u4e3a\u8d77\u70b9\uff0c\u81f4\u529b\u4e8e\u4e3a\u7528\u6237\u63d0\u4f9b\u6d41\u52a8\u6027\u597d\u3001\u8d39\u7387\u516c\u5141\u7684\u8d44\u4ea7\u914d\u7f6e\u5de5\u5177\u3002\u4ea7\u54c1\u7ebf\u5168\u9762\u3001\u4e30\u5bcc\uff0c\u6db5\u76d6\u80a1\u3001\u503a\u3001\u5546\u54c1\u7b49\u5404\u5927\u7c7b\u8d44\u4ea7\uff0c\u901a\u80c0\u3001\u8d8b\u52bf\u7b49\u5404\u7c7b\u56e0\u5b50\u3002  <\/p>\n\n\n\n<h3><strong>\u573a\u666f\u7b80\u4ecb+\u6838\u5fc3\u8bc9\u6c42<\/strong>\n<\/h3>\n\n\n\n<p>\u6211\u4eec\u7684\u91cf\u5316\u4ea4\u6613\u7cfb\u7edf\u6bcf\u5929\u8981\u63a5\u6536\u5927\u91cf\u7684\u884c\u60c5\u6570\u636e\uff0c\u4e5f\u8981\u57fa\u4e8e\u884c\u60c5\u4ea7\u751f\u5927\u91cf\u7684\u51b3\u7b56\u4fe1\u53f7\u3002\u8fd9\u4e9b\u6570\u636e\u90fd\u9700\u8981\u53ca\u65f6\u5b58\u4e0b\u6765\uff0c\u4f9b\u76d8\u4e2d\u548c\u76d8\u540e\u4f7f\u7528\u3002 <\/p>\n\n\n\n<p>\u4f20\u7edf\u5b58\u653e\u884c\u60c5\u6570\u636e\u7684\u65b9\u5f0f\u6709\u6587\u4ef6\u7cfb\u7edf\u3001\u5173\u7cfb\u578b\u6570\u636e\u5e93\u6216\u8005\u6587\u6863\u6570\u636e\u5e93\u3002\u6211\u4eec\u5c1d\u8bd5\u4e86MySQL\u548c\u77e5\u540d\u7684\u65f6\u5e8f\u6570\u636e\u5e93InfluxDB\uff0c\u4f46\u662f\u6027\u80fd\u90fd\u6ca1\u6709\u8fbe\u5230\u9884\u671f\u3002\u5206\u522b\u9047\u5230\u4e86\u5982\u4e0b\u95ee\u9898\uff1a <\/p>\n\n\n\n<ul><li class=\"\"> MySQL\uff1a\u5728\u5199\u5165\u5927\u91cf\u5b9e\u65f6\u7684\u65f6\u5e8f\u6570\u636e\u65f6\uff0c\u6027\u80fd\u4e0d\u7406\u60f3\uff1b\u5373\u4fbf\u662f\u4f18\u5316\u4e4b\u540e\uff0c\u5bf9\u4e8e\u8d44\u6e90\u7684\u6d6a\u8d39\u4ecd\u7136\u5341\u5206\u60ca\u4eba\u3002\u800c\u4e14\u968f\u7740\u6570\u636e\u91cf\u7684\u589e\u52a0\uff0c\u5bf9\u8bbe\u5907\u6570\u636e\u7684\u5b9e\u65f6\u67e5\u8be2\u3001\u65f6\u95f4\u8303\u56f4\u5206\u6790\u7684\u9700\u6c42\u589e\u52a0\uff0c\u57fa\u4e8eMySQL\u7684\u67e5\u8be2\u5206\u6790\u64cd\u4f5c\uff0c\u54cd\u5e94\u65f6\u95f4\u4f1a\u8d8a\u6765\u8d8a\u957f\uff0c\u751a\u81f3\u4f1a\u65e0\u54cd\u5e94\u3002\u7f3a\u4e4f\u81ea\u52a8\u5efa\u8868\u529f\u80fd\uff0c\u4f7f\u7528\u5f88\u4e0d\u65b9\u4fbf\u3002\n<\/li><li class=\"\">InfluxDB\uff1a\u867d\u7136\u662f<a href=\"https:\/\/www.taosdata.com\/\" data-internallinksmanager029f6b8e52c=\"2\" title=\"\u65f6\u5e8f\u6570\u636e\u5e93\" target=\"_blank\" rel=\"noopener\">\u65f6\u5e8f\u6570\u636e\u5e93<\/a>\uff0c\u4f46\u662f\u7ecf\u8fc7\u6d4b\u8bd5\u540e\u6027\u80fd\u4e0d\u80fd\u6ee1\u8db3\u9884\u671f\uff0c\u5728\u5b8c\u6210\u540c\u6837\u6570\u636e\u91cf\u7684\u5199\u5165\u65f6\u5bf9\u4e8e\u8d44\u6e90\u7684\u4f7f\u7528\u7a0b\u5ea6\u4e5f\u5e76\u4e0d\u80fd\u4ee4\u4eba\u6ee1\u610f\u3002\n<\/li><\/ul>\n\n\n\n<p>\u6700\u540e\uff0c\u6211\u4eec\u6539\u7528<a href=\"https:\/\/www.taosdata.com\/\" data-internallinksmanager029f6b8e52c=\"1\" title=\"TDengine\" target=\"_blank\" rel=\"noopener\">TDengine<\/a> Database\u5f7b\u5e95\u89e3\u51b3\u4e86\u5b9e\u65f6\u5199\u5165\u5927\u91cf\u6570\u636e\u70b9\u548c\u5feb\u901f\u67e5\u8be2\u7684\u95ee\u9898\u3002 <\/p>\n\n\n\n<h3><strong>TDengine Database\u5177\u4f53\u843d\u5730<\/strong> <\/h3>\n\n\n\n<p>\u5bf9\u4e8e\u7b56\u7565\u7814\u7a76\u5458\u800c\u8a00\uff0c\u5386\u53f2\u884c\u60c5\u548c\u4fe1\u53f7\u662f\u4ea4\u6613\u7b56\u7565\u7814\u7a76\u7684\u91cd\u8981\u7d20\u6750\u3002\u4e0b\u9762\u4ee5\u884c\u60c5\u6570\u636e\u548c\u7b56\u7565\u4fe1\u53f7\u6570\u636e\u4e3a\u6848\u4f8b\u4e88\u4ee5\u4ecb\u7ecd\u3002\n<\/p>\n\n\n\n<h4><strong>\u6570\u636e\u5efa\u6a21<\/strong>\n<\/h4>\n\n\n\n<p>\u9996\u5148\uff0c\u5c06\u884c\u60c5\u6570\u636e\u548c\u4fe1\u53f7\u6570\u636e\u5206\u522b\u5b58\u50a8\u3002\u5728TDengine Database\u4e2d\u5206\u522b\u521b\u5efa\u4e86\u4e00\u4e2a\u884c\u60c5\u6570\u636e\u5e93\u548c\u4fe1\u53f7\u6570\u636e\u5e93\u3002 <\/p>\n\n\n\n<p>\u867d\u7136\u662f\u65f6\u5e8f\u6570\u636e\u5e93\uff0c\u4f46\u662fTDengine\u4f7f\u7528\u4e86\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7684\u6a21\u578b\uff0c\u5efa\u5e93\uff0c\u5efa\u8868\uff0c\u4f7f\u7528SQL\uff0c\u5341\u5206\u4fbf\u4e8e\u4f20\u7edf\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7684\u7528\u6237\u5165\u624b\u3002\u5e76\u4e14\uff0c\u4ed6\u4eec\u8fd8\u5f88\u6709\u521b\u610f\u5730\u8bbe\u8ba1\u4e86\u8d85\u7ea7\u8868\u7684\u6982\u5ff5\uff0c\u4e0e\u6211\u4eec\u7684\u573a\u666f\u5341\u5206\u5951\u5408\u3002 <\/p>\n\n\n\n<p>\u56e0\u4e3a\u6240\u6709\u884c\u60c5\u6570\u636e\u7ed3\u6784\u76f8\u540c\uff0c\u884c\u60c5\u5e93\u4e2d\u53ea\u9700\u8981\u4e00\u4e2a\u8d85\u7ea7\u8868\uff0c\u4e0b\u9762\u6bcf\u4e2a\u5de5\u5177\uff08\u884d\u751f\u54c1\u57fa\u91d1\u7b49\uff09\u5bf9\u5e94\u4e00\u4e2a\u5b50\u8868\u3002\u6bd4\u5982CU2101\u8868\u793a2021\u5e741\u6708\u4efd\u5230\u671f\u7684\u94dc\u671f\u8d27\u4ea4\u6613\u5408\u7ea6\u3002\u5728\u5408\u7ea6\u5230\u671f\u4e4b\u524d\uff0c\u90fd\u4f1a\u6709\u884c\u60c5\u6570\u636e\u5199\u5165\u3002\u4e0b\u9762\u91cd\u70b9\u4ecb\u7ecd\u7b56\u7565\u4fe1\u53f7\u6570\u636e\u5e93\u3002 <\/p>\n\n\n\n<p>\u4fe1\u53f7\u5e93\u6709\u4e24\u5f20\u8d85\u7ea7\u8868\uff0c\u5206\u522b\u5bf9\u5e94\u5408\u7ea6\u7ea7\u522b\u4fe1\u53f7\u548c\u7b56\u7565\u7ea7\u522b\u4fe1\u53f7\uff0c\u6bcf\u4e2a\u4ea4\u6613\u4fe1\u53f7\u5bf9\u5e94\u4e00\u5f20\u5b50\u8868\uff0c\u5f53\u524d\u5171\u6709 40,000\u591a\u5f20\u8868\uff0c\u8868\u7ed3\u6784\u5206\u522b\u5982\u4e0b\u6240\u793a\uff1a <\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" loading=\"lazy\" width=\"830\" height=\"316\" src=\"https:\/\/tdengine.com\/wp-content\/uploads\/2021\/10\/111-1.png\" alt=\"TDengine Database\" class=\"wp-image-3182\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/111-1.png 830w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/111-1-300x114.png 300w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/111-1-768x292.png 768w\" sizes=\"(max-width: 830px) 100vw, 830px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<p> \u4e0b\u9762\u662f\u4fe1\u53f7\u5e93\u6267\u884cshow tables\u7684\u622a\u56fe\uff1a <\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"159\" src=\"https:\/\/tdengine.com\/wp-content\/uploads\/2021\/10\/222-1024x159.png\" alt=\"TDengine Database\" class=\"wp-image-3183\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/222-1024x159.png 1024w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/222-300x47.png 300w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/222-768x120.png 768w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/222.png 1085w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"135\" src=\"https:\/\/tdengine.com\/wp-content\/uploads\/2021\/10\/333-1024x135.png\" alt=\"TDengine Database\" class=\"wp-image-3184\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/333-1024x135.png 1024w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/333-300x40.png 300w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/333-768x101.png 768w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/333.png 1085w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<h4><strong>\u6570\u636e\u5e93\u914d\u7f6e\u4ee5\u53ca\u5199\u5165<\/strong>\n<\/h4>\n\n\n\n<p>\u6211\u4eec\u9009\u7528\u7684TDengine\u7248\u672c\u662f2.2.0.0\uff0c\u7531\u4e8e\u5355\u673a\u7248\u5c1a\u65e0\u538b\u529b\uff0c\u76ee\u524d\u8fd8\u4e0d\u9700\u8981\u96c6\u7fa4\u3002\u6b64\u5916\uff0c\u673a\u5668\u670940\u6838\uff0c\u800cTDengine\u7684\u6bcf\u4e00\u4e2avnode\u53c8\u662f\u62e5\u6709\u72ec\u7acb\u8fd0\u884c\u7ebf\u7a0b\u7684\u5de5\u4f5c\u5355\u5143\u3002\u6240\u4ee5\uff0c\u6839\u636e\u6587\u7ae0\u300a<a href=\"https:\/\/mp.weixin.qq.com\/s\/H2GCESF40wnWYf4IKP_-9g\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">\u8fd9\u51e0\u4e2a\u795e\u79d8\u53c2\u6570\uff0c\u6559\u4f60TDengine\u96c6\u7fa4\u7684\u6b63\u786e\u4f7f\u7528\u65b9\u5f0f<\/a>\u300b\uff0c\u6211\u8c03\u6574\u4e86minTablesPerVnode\u3001tableIncStepPerVnode\u548cmaxVgroupsPerDb\u53c2\u6570\uff0c\u8ba9vnode\u7684\u6570\u91cf\u6070\u597d\u7b49\u4e8eCPU\u6838\u6570\uff0c\u8ba9\u6bcf\u4e2a\u6838\u72ec\u7acb\u8fd0\u884c\u4e00\u4e2a\u7ebf\u7a0b\uff0c\u5b9e\u73b0\u4e86\u6570\u636e\u7684\u5408\u7406\u5316\u5206\u5e03\uff0c\u4ee5\u4e89\u53d6\u8fbe\u5230\u6700\u4f73\u6027\u80fd\u3002 <\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" loading=\"lazy\" width=\"830\" height=\"812\" src=\"https:\/\/tdengine.com\/wp-content\/uploads\/2021\/10\/444.png\" alt=\"TDengine Database\" class=\"wp-image-3185\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/444.png 830w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/444-300x293.png 300w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/444-768x751.png 768w\" sizes=\"(max-width: 830px) 100vw, 830px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<h4><strong>\u5199\u5165\u6027\u80fd<\/strong>\n<\/h4>\n\n\n\n<p>\u5f53\u524d\uff0c\u6211\u4eec\u5927\u6982\u6bcf\u79d2\u5199\u51653\u4e07\u884c\u6570\u636e\u3002\u5355\u8282\u70b9TDengine\u53ef\u4ee5\u5341\u5206\u8f7b\u677e\u5730\u5b9e\u73b0\u8fd9\u4e2a\u7ea7\u522b\u6570\u636e\u91cf\u7684\u5199\u5165\u3002\u540c\u65f6\uff0c\u6d88\u8017\u670d\u52a1\u5668\u8d44\u6e90\u53c8\u6bd4InfluxDB\u4e0eMySQL\u5c0f\u7684\u591a\u3002\u56e0\u6b64\uff0c\u5373\u4fbf\u672a\u6765\u4e1a\u52a1\u6269\u5927\uff0c\u6211\u4eec\u4e5f\u4e0d\u9700\u8981\u62c5\u5fc3\u989d\u5916\u7684\u786c\u4ef6\u6210\u672c\u3002\n<\/p>\n\n\n\n<h4><strong>\u8d44\u6e90\u6d88\u8017<\/strong>\n<\/h4>\n\n\n\n<p>\u6211\u4eec\u5f53\u524d\u7684\u670d\u52a1\u5668\u914d\u7f6e\u5982\u4e0b\uff1a64G\u5185\u5b58+40\u6838 1.8GHz CPU+\u673a\u68b0\u786c\u76d8\u3002 <\/p>\n\n\n\n<p>\u5728\u4e1a\u52a1\u8fd0\u884c\u671f\u95f4\uff0ctaosd\u7684%CPU\u53ea\u67094%\u4e0a\u4e0b\u6d6e\u52a8\uff0c\u8fdb\u7a0b\u4f7f\u7528\u7684\u7269\u7406\u5185\u5b58\u767e\u5206\u6bd4\u4e3a11.2%\u3002\u867d\u7136\u5185\u5b58\u5360\u7528\u7a0d\u591a\uff0c\u4f46\u8fd9\u662f\u7531\u4e8e\u6211\u4eec\u7684vnode\u914d\u7f6e\u7684\u6bd4\u8f83\u591a\uff0c\u6bcf\u4e2avnode\u90fd\u6709\u81ea\u5df1\u56fa\u5b9a\u7684\u5185\u5b58\u7f13\u51b2\u533a\u3002\u56e0\u6b64\uff0c\u540e\u7eed\u5373\u4fbf\u662f\u7ee7\u7eed\u5927\u91cf\u589e\u52a0\u65b0\u8868\u6216\u8005\u52a0\u5927\u5199\u5165\u91cf\uff0c\u5185\u5b58\u5360\u7528\u4e5f\u4e0d\u4f1a\u6709\u660e\u663e\u7684\u6d6e\u52a8\u4e86\u3002 <\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" loading=\"lazy\" width=\"830\" height=\"396\" src=\"https:\/\/tdengine.com\/wp-content\/uploads\/2021\/10\/555.png\" alt=\"TDengine Database\" class=\"wp-image-3186\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/555.png 830w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/555-300x143.png 300w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/555-768x366.png 768w\" sizes=\"(max-width: 830px) 100vw, 830px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<p> \u622a\u81f3\u76ee\u524d\uff0c\u901a\u8fc7TDengine\u5f55\u5165\u7684\u4e24\u4e2a\u4fe1\u53f7\u8868\u5df2\u7ecf\u5199\u5165\u4e8682\u4ebf\u6761\u6570\u636e\uff0c\u539f\u6570\u636e\u5927\u6982\u4e3a92GB\uff0c\u5b9e\u9645\u5360\u7528\u5b58\u50a8\u7a7a\u95f4\u4e3a20G\u5de6\u53f3\uff0c\u538b\u7f29\u7387\u9ad8\u8fbe23%\uff0c\u5982\u679c\u662f\u6574\u578b\u6570\u636e\u5e94\u8be5\u8fd8\u4f1a\u66f4\u9ad8\u3002 <\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" loading=\"lazy\" width=\"656\" height=\"180\" src=\"https:\/\/tdengine.com\/wp-content\/uploads\/2021\/10\/666.png\" alt=\"TDengine Database\" class=\"wp-image-3187\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/666.png 656w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/666-300x82.png 300w\" sizes=\"(max-width: 656px) 100vw, 656px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" loading=\"lazy\" width=\"830\" height=\"46\" src=\"https:\/\/tdengine.com\/wp-content\/uploads\/2021\/10\/777.png\" alt=\"TDengine Database\" class=\"wp-image-3188\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/777.png 830w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/777-300x17.png 300w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/777-768x43.png 768w\" sizes=\"(max-width: 830px) 100vw, 830px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" loading=\"lazy\" width=\"670\" height=\"194\" src=\"https:\/\/tdengine.com\/wp-content\/uploads\/2021\/10\/888.png\" alt=\"TDengine Database\" class=\"wp-image-3189\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/888.png 670w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/888-300x87.png 300w\" sizes=\"(max-width: 670px) 100vw, 670px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<h4><strong>\u67e5\u8be2\u6027\u80fd<\/strong> <\/h4>\n\n\n\n<p>\u9664\u4e86\u5199\u5165\u4e0e\u5b58\u50a8\uff0c\u4f7f\u7528TDengine\u505a\u65e5\u5e38\u67e5\u8be2\u7684\u901f\u5ea6\u4e5f\u5341\u5206\u4f18\u79c0\uff0c\u5373\u4fbf\u662f\u5bf9\u4e8e\u51e0\u5341\u4ebf\u7ea7\u522b\u7684\u5927\u8868\uff0c\u4e5f\u662f\u6beb\u79d2\u7ea7\u54cd\u5e94\u3002\u6211\u4eec\u6765\u770b\u4e24\u4e2a\u573a\u666f\u3002 <\/p>\n\n\n\n<p><strong>\u573a\u666f1\uff1a\u67e5\u8be2\u7279\u5b9a\u7b56\u7565\u4fe1\u53f7\u4e0b\u4e00\u6bb5\u65f6\u95f4\u7684\u5747\u503c\u3002<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>select avg(v) from stgbox.strategy_signal where stg_name = '{stg_id}' and signal_name ='{signal_name}' and ts >= '{from_date} 00:00:00' and ts <= '{to_date} 23:59:59.999' interval({interval})\n<\/code><\/pre>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"199\" src=\"https:\/\/tdengine.com\/wp-content\/uploads\/2021\/10\/999-1024x199.png\" alt=\"TDengine Database\" class=\"wp-image-3193\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/999-1024x199.png 1024w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/999-300x58.png 300w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/999-768x149.png 768w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/999.png 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"105\" src=\"https:\/\/tdengine.com\/wp-content\/uploads\/2021\/10\/101010-1024x105.png\" alt=\"TDengine Database\" class=\"wp-image-3190\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/101010-1024x105.png 1024w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/101010-300x31.png 300w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/101010-768x79.png 768w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/101010.png 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<p> \u4ee5\u4e0b\u662f\u6211\u4eec\u7528\u573a\u666f1\u67e5\u8be2\u51fa\u7684\u6570\u636e\u8fdb\u884c\u53ef\u89c6\u5316\u5206\u6790\u7684\u793a\u4f8b\u3002 <\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"608\" src=\"https:\/\/tdengine.com\/wp-content\/uploads\/2021\/10\/111111-1-1024x608.png\" alt=\"TDengine Database\" class=\"wp-image-3194\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/111111-1-1024x608.png 1024w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/111111-1-300x178.png 300w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/111111-1-768x456.png 768w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/111111-1.png 1173w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<p><strong>\u573a\u666f2\uff1a\u67e5\u8be2\u6ee1\u8db3\u6a21\u7cca\u67e5\u8be2\u6761\u4ef6\u7684\u4fe1\u53f7\u7684\u6700\u65b0\u503c\u3002<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>select name,last(v) from stgbox.global_signal where name like '%keyword%' group by name\u3002\n<\/code><\/pre>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" loading=\"lazy\" width=\"830\" height=\"420\" src=\"https:\/\/tdengine.com\/wp-content\/uploads\/2021\/10\/121212.png\" alt=\"TDengine Database\" class=\"wp-image-3195\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/121212.png 830w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/121212-300x152.png 300w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/121212-768x389.png 768w\" sizes=\"(max-width: 830px) 100vw, 830px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" loading=\"lazy\" width=\"830\" height=\"92\" src=\"https:\/\/tdengine.com\/wp-content\/uploads\/2021\/10\/131313.png\" alt=\"TDengine Database\" class=\"wp-image-3196\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/131313.png 830w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/131313-300x33.png 300w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/131313-768x85.png 768w\" sizes=\"(max-width: 830px) 100vw, 830px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<p> \u5728\u4fee\u6539cachelast\u7f13\u5b58\u4e4b\u524d\uff0c\u67e5\u8be2\u6548\u7387\u5982\u4e0a\u3002 \u540e\u9762\u5728\u6d9b\u601d\u6570\u636e\u7684\u6280\u672f\u652f\u6301\u4e4b\u4e0b\uff0c\u6211\u4eec\u5c06cachelast\u53c2\u6570\u8bbe\u7f6e\u6210\u4e863\u3002 <\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"120\" src=\"https:\/\/tdengine.com\/wp-content\/uploads\/2021\/10\/141414-1024x120.png\" alt=\"TDengine Database\" class=\"wp-image-3197\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/141414-1024x120.png 1024w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/141414-300x35.png 300w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/141414-768x90.png 768w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/141414.png 1026w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<p> \u518d\u6267\u884c\u540c\u6837\u7684\u67e5\u8be2\uff0c\u67e5\u8be2\u6548\u7387\u5f97\u5230\u4e86\u5f88\u5927\u63d0\u5347\uff1a <\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" loading=\"lazy\" width=\"830\" height=\"64\" src=\"https:\/\/tdengine.com\/wp-content\/uploads\/2021\/10\/151515.png\" alt=\"TDengine Database\" class=\"wp-image-3198\" srcset=\"https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/151515.png 830w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/151515-300x23.png 300w, https:\/\/www.taosdata.com\/wp-content\/uploads\/2021\/10\/151515-768x59.png 768w\" sizes=\"(max-width: 830px) 100vw, 830px\" title=\"- TDengine Database \u65f6\u5e8f\u6570\u636e\u5e93\"><\/figure><\/div>\n\n\n\n<p>\n\u8fd9\u4e24\u4e2a\u90fd\u662f\u6211\u4eec\u6bd4\u8f83\u5178\u578b\u7684\u67e5\u8be2\u573a\u666f\uff0cTDengine\u5b8c\u7f8e\u5730\u5339\u914d\u4e86\u6211\u4eec\u5bf9\u529f\u80fd\u4ee5\u53ca\u6027\u80fd\u4e0a\u7684\u9700\u6c42\u3002\n<\/p>\n\n\n\n<h3> <strong>\u5199\u5728\u6700\u540e<\/strong>\n<\/h3>\n\n\n\n<p>\u6211\u4eec\u76ee\u524d\u5bf9TDengine\u7684\u4f7f\u7528\u8fd8\u5904\u4e8e\u521d\u7ea7\u9636\u6bb5\uff0cTDengine\u4e0d\u4ec5\u4ec5\u662f\u65f6\u5e8f\u6570\u636e\u5e93\uff0c\u8fd8\u53ef\u4ee5\u4f5c\u4e3a\u6d88\u606f\u961f\u5217\uff0c\u652f\u6301\u6570\u636e\u8ba2\u9605\u3002\u4ee5\u540e\u6211\u4eec\u4f1a\u63a2\u7d22\u5c06TDengine\u7528\u4e8e\u66f4\u591a\u7684\u4e1a\u52a1\u573a\u666f\uff0c\u4ee5\u66f4\u597d\u5730\u670d\u52a1\u4e8e\u6211\u4eec\u7684\u5404\u7c7b\u5206\u6790\u4e0e\u4ea4\u6613\u6267\u884c\u3002 <\/p>\n\n\n\n<p>\u5173\u4e8e\u4f5c\u8005\uff1a <\/p>\n\n\n\n<p>\u4e01\u535a\uff0c\u5f18\u6e90\u6cf0\u5e73\u91cf\u5316\u5de5\u7a0b\u5e08\u3002\u76ee\u524d\u8d1f\u8d23\u516c\u53f8\u4ea4\u6613\u6267\u884c\u7cfb\u7edf\u3001\u4ea4\u6613\u7b56\u7565\u4fe1\u53f7\u7cfb\u7edf\u548c\u4ea4\u6613\u7ec4\u5408\u7ba1\u7406\u7cfb\u7edf\u7684\u7814\u53d1\u3002 <\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u4eec\u6539\u7528TDengine Database\u5f7b\u5e95\u89e3\u51b3\u4e86\u5b9e\u65f6\u5199\u5165\u5927\u91cf\u6570\u636e\u70b9\u548c\u5feb\u901f\u67e5\u8be2\u7684\u95ee\u9898\u3002 <\/p>\n","protected":false},"author":87,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[4,5],"tags":[90],"_links":{"self":[{"href":"https:\/\/www.taosdata.com\/wp-json\/wp\/v2\/posts\/3180"}],"collection":[{"href":"https:\/\/www.taosdata.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.taosdata.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.taosdata.com\/wp-json\/wp\/v2\/users\/87"}],"replies":[{"embeddable":true,"href":"https:\/\/www.taosdata.com\/wp-json\/wp\/v2\/comments?post=3180"}],"version-history":[{"count":0,"href":"https:\/\/www.taosdata.com\/wp-json\/wp\/v2\/posts\/3180\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.taosdata.com\/wp-json\/wp\/v2\/media?parent=3180"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.taosdata.com\/wp-json\/wp\/v2\/categories?post=3180"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.taosdata.com\/wp-json\/wp\/v2\/tags?post=3180"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}