{"id":50650,"date":"2025-08-10T11:37:40","date_gmt":"2025-08-10T03:37:40","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/50650.html"},"modified":"2025-08-10T11:37:40","modified_gmt":"2025-08-10T03:37:40","slug":"tdengine-%e7%9a%84-histogram-%e5%87%bd%e6%95%b0%e7%94%a8%e6%88%b7%e6%89%8b%e5%86%8c","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/50650.html","title":{"rendered":"TDengine \u7684 HISTOGRAM() \u51fd\u6570\u7528\u6237\u624b\u518c"},"content":{"rendered":"

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

HISTOGRAM \u51fd\u6570\u7528\u6237\u4f7f\u7528\u624b\u518c<\/h3>\n

\u6982\u8ff0<\/h4>\n

HISTOGRAM \u51fd\u6570\u662f TDengine \u4e2d\u7684\u4e00\u4e2a\u805a\u5408\u51fd\u6570，\u7528\u4e8e\u5bf9\u6570\u503c\u6570\u636e\u8fdb\u884c\u76f4\u65b9\u56fe\u7edf\u8ba1\u5206\u6790\u3002\u5b83\u5c06\u6570\u636e\u6309\u7167\u6307\u5b9a\u7684\u533a\u95f4（bins）\u8fdb\u884c\u5206\u7ec4\u7edf\u8ba1，\u8fd4\u56de\u6bcf\u4e2a\u533a\u95f4\u5185\u6570\u636e\u7684\u6570\u91cf\u5206\u5e03，\u5e2e\u52a9\u7528\u6237\u7406\u89e3\u6570\u636e\u7684\u5206\u5e03\u7279\u5f81\u3002<\/p>\n

\u8bed\u6cd5<\/h4>\n

HISTOGRAM(<\/span>expr,<\/span> bin_type,<\/span> bin_desc,<\/span> normalized)<\/span><\/p>\n

\u53c2\u6570\u8bf4\u660e<\/h4>\n\n\u53c2\u6570\u7c7b\u578b\u5fc5\u9700\u63cf\u8ff0<\/tr>\n\n\n\n\n\n
expr<\/td>\n\u6570\u503c\u7c7b\u578b<\/td>\n\u662f<\/td>\n\u8981\u8fdb\u884c\u76f4\u65b9\u56fe\u5206\u6790\u7684\u5b57\u6bb5\u6216\u8868\u8fbe\u5f0f，\u652f\u6301\u6240\u6709\u6570\u503c\u7c7b\u578b（\u6574\u578b\u3001\u6d6e\u70b9\u578b\u3001\u65e0\u7b26\u53f7\u6574\u578b\u7b49）<\/td>\n<\/tr>\n
bin_type<\/td>\nSTRING<\/td>\n\u662f<\/td>\n\u5206\u7bb1\u7c7b\u578b，\u652f\u6301\u4e09\u79cd\u7c7b\u578b：- 'user_input'：\u7528\u6237\u81ea\u5b9a\u4e49\u5206\u7bb1- 'linear_bin'：\u7ebf\u6027\u7b49\u8ddd\u5206\u7bb1- 'log_bin'：\u5bf9\u6570\u5206\u7bb1<\/td>\n<\/tr>\n
bin_desc<\/td>\nSTRING<\/td>\n\u662f<\/td>\n\u5206\u7bb1\u63cf\u8ff0，\u683c\u5f0f\u4f9d\u636e bin_type \u800c\u5b9a，\u8be6\u89c1\u4e0b\u6587<\/td>\n<\/tr>\n
normalized<\/td>\nINT<\/td>\n\u662f<\/td>\n\u6807\u51c6\u5316\u6807\u5fd7，\u53d6\u503c\u4e3a 0 \u6216 1：- 0：\u8fd4\u56de\u7edd\u5bf9\u8ba1\u6570- 1：\u8fd4\u56de\u5f52\u4e00\u5316\u767e\u5206\u6bd4（\u603b\u548c\u4e3a1）<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u8fd4\u56de\u503c\u7c7b\u578b<\/h4>\n

STRING – \u8fd4\u56de JSON \u683c\u5f0f\u7684\u5b57\u7b26\u4e32，\u5305\u542b\u6bcf\u4e2a\u533a\u95f4\u7684\u7edf\u8ba1\u4fe1\u606f\u3002<\/p>\n

\u5206\u7bb1\u7c7b\u578b\u8be6\u89e3<\/h4>\n

1. \u7528\u6237\u81ea\u5b9a\u4e49\u5206\u7bb1 (user_input)<\/h5>\n

\u7528\u6237\u76f4\u63a5\u6307\u5b9a\u5206\u7bb1\u8fb9\u754c\u70b9\u3002<\/p>\n

bin_desc \u683c\u5f0f：<\/p>\n

[<\/span>\u8fb9\u754c\u70b91<\/span>,<\/span> \u8fb9\u754c\u70b92<\/span>,<\/span> \u8fb9\u754c\u70b93<\/span>,<\/span> …<\/span>]<\/span><\/p>\n

\u8981\u6c42：<\/p>\n

    \n
  • \u8fb9\u754c\u70b9\u5fc5\u987b\u662f\u6570\u503c\u7c7b\u578b<\/li>\n
  • \u8fb9\u754c\u70b9\u5fc5\u987b\u4e25\u683c\u9012\u589e<\/li>\n
  • \u81f3\u5c11\u5305\u542b2\u4e2a\u8fb9\u754c\u70b9<\/li>\n
  • \u751f\u6210\u7684\u533a\u95f4\u6570\u91cf = \u8fb9\u754c\u70b9\u6570\u91cf – 1<\/li>\n<\/ul>\n

    \u793a\u4f8b：<\/p>\n

    — \u5c06\u6570\u636e\u5206\u4e3a3\u4e2a\u533a\u95f4：(0,3]\u3001(3,6]\u3001(6,9]<\/span>
    \nSELECT<\/span> HISTOGRAM(<\/span>c_int,<\/span> 'user_input'<\/span>,<\/span> '[0,3,6,9]'<\/span>,<\/span> 0<\/span>)<\/span> FROM<\/span> table_name;<\/span><\/p>\n

    2. \u7ebf\u6027\u7b49\u8ddd\u5206\u7bb1 (linear_bin)<\/h5>\n

    \u6309\u7167\u7ebf\u6027\u7b49\u8ddd\u65b9\u5f0f\u81ea\u52a8\u751f\u6210\u5206\u7bb1\u3002<\/p>\n

    bin_desc \u683c\u5f0f：<\/p>\n

    {<\/span>
    \n "start"<\/span>:<\/span> \u8d77\u59cb\u503c,<\/span>
    \n "width"<\/span>:<\/span> \u533a\u95f4\u5bbd\u5ea6,<\/span>
    \n "count"<\/span>:<\/span> \u533a\u95f4\u6570\u91cf,<\/span>
    \n "infinity"<\/span>:<\/span> \u662f\u5426\u5305\u542b\u65e0\u7a77\u533a\u95f4
    \n}<\/span><\/p>\n

    \u53c2\u6570\u8bf4\u660e：<\/p>\n

      \n
    • start：\u7b2c\u4e00\u4e2a\u533a\u95f4\u7684\u8d77\u59cb\u503c<\/li>\n
    • width：\u6bcf\u4e2a\u533a\u95f4\u7684\u5bbd\u5ea6，\u4e0d\u80fd\u4e3a0<\/li>\n
    • count：\u8981\u751f\u6210\u7684\u533a\u95f4\u6570\u91cf，\u8303\u56f4 [1, 1000]<\/li>\n
    • infinity：\u5e03\u5c14\u503c，true\u65f6\u4f1a\u5728\u4e24\u7aef\u6dfb\u52a0 (-\u221e, start] \u548c (last, +\u221e) \u533a\u95f4<\/li>\n<\/ul>\n

      \u793a\u4f8b：<\/p>\n

      — \u751f\u62105\u4e2a\u533a\u95f4：(-\u221e,0]\u3001(0,10]\u3001(10,20]\u3001(20,30]\u3001(30,40]\u3001(40,+\u221e)<\/span>
      \nSELECT<\/span> HISTOGRAM(<\/span>c_int,<\/span> 'linear_bin'<\/span>,<\/span>
      \n '{"start": 0, "width": 10, "count": 4, "infinity": true}'<\/span>,<\/span> 1<\/span>)<\/span>
      \nFROM<\/span> table_name;<\/span><\/p>\n

      3. \u5bf9\u6570\u5206\u7bb1 (log_bin)<\/h5>\n

      \u6309\u7167\u5bf9\u6570\u6bd4\u4f8b\u751f\u6210\u5206\u7bb1，\u9002\u7528\u4e8e\u5177\u6709\u6307\u6570\u5206\u5e03\u7279\u5f81\u7684\u6570\u636e\u3002<\/p>\n

      bin_desc \u683c\u5f0f：<\/p>\n

      {<\/span>
      \n "start"<\/span>:<\/span> \u8d77\u59cb\u503c,<\/span>
      \n "factor"<\/span>:<\/span> \u500d\u6570\u56e0\u5b50,<\/span>
      \n "count"<\/span>:<\/span> \u533a\u95f4\u6570\u91cf,<\/span>
      \n "infinity"<\/span>:<\/span> \u662f\u5426\u5305\u542b\u65e0\u7a77\u533a\u95f4
      \n}<\/span><\/p>\n

      \u53c2\u6570\u8bf4\u660e：<\/p>\n

        \n
      • start：\u7b2c\u4e00\u4e2a\u533a\u95f4\u7684\u8d77\u59cb\u503c，\u4e0d\u80fd\u4e3a0<\/li>\n
      • factor：\u500d\u6570\u56e0\u5b50，\u5fc5\u987b\u5927\u4e8e0\u4e14\u4e0d\u7b49\u4e8e1<\/li>\n
      • count：\u8981\u751f\u6210\u7684\u533a\u95f4\u6570\u91cf，\u8303\u56f4 [1, 1000]<\/li>\n
      • infinity：\u5e03\u5c14\u503c，\u63a7\u5236\u662f\u5426\u6dfb\u52a0\u65e0\u7a77\u533a\u95f4<\/li>\n<\/ul>\n

        \u751f\u6210\u89c4\u5219：\u7b2c i \u4e2a\u8fb9\u754c\u70b9 = start \u00d7 factor^i<\/p>\n

        \u793a\u4f8b：<\/p>\n

        — \u751f\u6210\u5bf9\u6570\u5206\u7bb1：(1,2]\u3001(2,8]\u3001(8,32]\u3001(32,128]<\/span>
        \nSELECT<\/span> HISTOGRAM(<\/span>c_float,<\/span> 'log_bin'<\/span>,<\/span>
        \n '{"start": 1, "factor": 4, "count": 4, "infinity": false}'<\/span>,<\/span> 0<\/span>)<\/span>
        \nFROM<\/span> table_name;<\/span><\/p>\n

        \u8f93\u51fa\u683c\u5f0f<\/h4>\n

        \u51fd\u6570\u8fd4\u56de JSON \u683c\u5f0f\u7684\u5b57\u7b26\u4e32\u6570\u7ec4，\u6bcf\u4e2a\u5143\u7d20\u5305\u542b：<\/p>\n

        {<\/span>
        \n "lower_bin"<\/span>:<\/span> \u533a\u95f4\u4e0b\u754c,<\/span>
        \n "upper_bin"<\/span>:<\/span> \u533a\u95f4\u4e0a\u754c,<\/span>
        \n "count"<\/span>:<\/span> \u8be5\u533a\u95f4\u5185\u7684\u6570\u636e\u91cf<\/span>(<\/span>normalized=<\/span>0<\/span>\u65f6)<\/span>\u6216\u767e\u5206\u6bd4<\/span>(<\/span>normalized=<\/span>1<\/span>\u65f6)<\/span>
        \n}<\/span><\/p>\n

        \u4f7f\u7528\u573a\u666f<\/h4>\n

        1. \u6570\u636e\u5206\u5e03\u5206\u6790<\/h5>\n

        \u5206\u6790\u6570\u636e\u7684\u5206\u5e03\u7279\u5f81，\u8bc6\u522b\u6570\u636e\u7684\u96c6\u4e2d\u8d8b\u52bf\u548c\u79bb\u6563\u7a0b\u5ea6\u3002<\/p>\n

        — \u5206\u6790\u6e29\u5ea6\u6570\u636e\u7684\u5206\u5e03<\/span>
        \nSELECT<\/span> HISTOGRAM(<\/span>temperature,<\/span> 'linear_bin'<\/span>,<\/span>
        \n '{"start": -10, "width": 5, "count": 20, "infinity": true}'<\/span>,<\/span> 1<\/span>)<\/span>
        \nFROM<\/span> sensor_data
        \nWHERE<\/span> ts >=<\/span> '2024-01-01'<\/span> AND<\/span> ts <<\/span> '2024-02-01'<\/span>;<\/span><\/p>\n

        2. \u5f02\u5e38\u68c0\u6d4b<\/h5>\n

        \u901a\u8fc7\u76f4\u65b9\u56fe\u8bc6\u522b\u6570\u636e\u4e2d\u7684\u5f02\u5e38\u503c\u6216\u5f02\u5e38\u6a21\u5f0f\u3002<\/p>\n

        — \u68c0\u6d4b\u54cd\u5e94\u65f6\u95f4\u7684\u5f02\u5e38\u5206\u5e03<\/span>
        \nSELECT<\/span> HISTOGRAM(<\/span>response_time,<\/span> 'log_bin'<\/span>,<\/span>
        \n '{"start": 1, "factor": 2, "count": 10, "infinity": true}'<\/span>,<\/span> 0<\/span>)<\/span>
        \nFROM<\/span> api_logs
        \nWHERE<\/span> ts >=<\/span> NOW<\/span>(<\/span>)<\/span> –<\/span> INTERVAL<\/span> 1<\/span> DAY<\/span>;<\/span><\/p>\n

        3. \u6027\u80fd\u5206\u6790<\/h5>\n

        \u5206\u6790\u7cfb\u7edf\u6027\u80fd\u6307\u6807\u7684\u5206\u5e03\u60c5\u51b5，\u5982\u54cd\u5e94\u65f6\u95f4\u3001CPU\u4f7f\u7528\u7387\u7b49\u3002<\/p>\n

        — \u5206\u6790CPU\u4f7f\u7528\u7387\u5206\u5e03<\/span>
        \nSELECT<\/span> HISTOGRAM(<\/span>cpu_usage,<\/span> 'user_input'<\/span>,<\/span> '[0,20,40,60,80,100]'<\/span>,<\/span> 1<\/span>)<\/span>
        \nFROM<\/span> system_metrics
        \nWHERE<\/span> ts >=<\/span> NOW<\/span>(<\/span>)<\/span> –<\/span> INTERVAL<\/span> 1<\/span> HOUR<\/span>;<\/span><\/p>\n

        4. \u4e1a\u52a1\u6307\u6807\u5206\u6790<\/h5>\n

        \u5bf9\u4e1a\u52a1\u6570\u636e\u8fdb\u884c\u7edf\u8ba1\u5206\u6790，\u5982\u8ba2\u5355\u91d1\u989d\u5206\u5e03\u3001\u7528\u6237\u5e74\u9f84\u5206\u5e03\u7b49\u3002<\/p>\n

        — \u5206\u6790\u8ba2\u5355\u91d1\u989d\u5206\u5e03<\/span>
        \nSELECT<\/span> HISTOGRAM(<\/span>order_amount,<\/span> 'linear_bin'<\/span>,<\/span>
        \n '{"start": 0, "width": 100, "count": 50, "infinity": false}'<\/span>,<\/span> 1<\/span>)<\/span>
        \nFROM<\/span> orders
        \nWHERE<\/span> order_date >=<\/span> '2024-01-01'<\/span>;<\/span><\/p>\n

        \u89e3\u51b3\u7684\u95ee\u9898<\/h4>\n
      • \u6570\u636e\u5206\u5e03\u53ef\u89c6\u5316：\u5c06\u8fde\u7eed\u6570\u503c\u6570\u636e\u79bb\u6563\u5316，\u4fbf\u4e8e\u7406\u89e3\u6570\u636e\u5206\u5e03\u7279\u5f81<\/li>\n
      • \u7edf\u8ba1\u5206\u6790\u652f\u6301：\u4e3a\u540e\u7eed\u7684\u7edf\u8ba1\u5206\u6790\u548c\u673a\u5668\u5b66\u4e60\u63d0\u4f9b\u6570\u636e\u9884\u5904\u7406<\/li>\n
      • \u5f02\u5e38\u503c\u8bc6\u522b：\u901a\u8fc7\u5206\u5e03\u5206\u6790\u5feb\u901f\u5b9a\u4f4d\u5f02\u5e38\u6570\u636e<\/li>\n
      • \u6027\u80fd\u76d1\u63a7：\u5b9e\u65f6\u76d1\u63a7\u7cfb\u7edf\u6027\u80fd\u6307\u6807\u7684\u5206\u5e03\u53d8\u5316<\/li>\n
      • \u4e1a\u52a1\u6d1e\u5bdf：\u901a\u8fc7\u6570\u636e\u5206\u5e03\u5206\u6790\u83b7\u5f97\u4e1a\u52a1\u6d1e\u5bdf<\/li>\n

        \u4f7f\u7528\u9650\u5236<\/h4>\n
      • \n

        \u53c2\u6570\u9650\u5236：<\/p>\n

          \n
        • count \u53c2\u6570\u8303\u56f4：[1, 1000]<\/li>\n
        • factor \u5fc5\u987b\u5927\u4e8e0\u4e14\u4e0d\u7b49\u4e8e1<\/li>\n
        • width \u4e0d\u80fd\u4e3a0<\/li>\n
        • \u5bf9\u6570\u5206\u7bb1\u7684 start \u4e0d\u80fd\u4e3a0<\/li>\n<\/ul>\n<\/li>\n
        • \n

          \u6570\u636e\u7c7b\u578b\u9650\u5236：<\/p>\n

            \n
          • expr \u5fc5\u987b\u662f\u6570\u503c\u7c7b\u578b<\/li>\n
          • \u4e0d\u652f\u6301\u5b57\u7b26\u4e32\u3001\u5e03\u5c14\u503c\u3001\u65f6\u95f4\u6233\u7c7b\u578b<\/li>\n<\/ul>\n<\/li>\n
          • \n

            \u51fd\u6570\u7ec4\u5408\u9650\u5236：<\/p>\n

              \n
            • \u4e0d\u80fd\u4e0e\u5176\u4ed6\u805a\u5408\u51fd\u6570\u5d4c\u5957\u4f7f\u7528<\/li>\n
            • \u4e0d\u80fd\u5728 WHERE\u3001GROUP BY\u3001PARTITION BY \u5b50\u53e5\u4e2d\u4f7f\u7528\u5176\u4ed6\u805a\u5408\u51fd\u6570<\/li>\n<\/ul>\n<\/li>\n

              \u9002\u7528\u8303\u56f4<\/h4>\n
                \n
              • \u8868\u7c7b\u578b：\u652f\u6301\u666e\u901a\u8868\u548c\u8d85\u7ea7\u8868<\/li>\n
              • \u5d4c\u5957\u67e5\u8be2：\u652f\u6301\u5185\u5c42\u67e5\u8be2\u548c\u5916\u5c42\u67e5\u8be2<\/li>\n
              • \u7248\u672c\u8981\u6c42：TDengine 3.0+<\/li>\n<\/ul>\n

                \u6700\u4f73\u5b9e\u8df5<\/h4>\n
              • \n

                \u9009\u62e9\u5408\u9002\u7684\u5206\u7bb1\u7c7b\u578b：<\/p>\n

                  \n
                • \u5747\u5300\u5206\u5e03\u6570\u636e：\u4f7f\u7528 linear_bin<\/li>\n
                • \u6307\u6570\u5206\u5e03\u6570\u636e：\u4f7f\u7528 log_bin<\/li>\n
                • \u7279\u5b9a\u4e1a\u52a1\u9700\u6c42：\u4f7f\u7528 user_input<\/li>\n<\/ul>\n<\/li>\n
                • \n

                  \u5408\u7406\u8bbe\u7f6e\u533a\u95f4\u6570\u91cf：<\/p>\n

                    \n
                  • \u4e00\u822c\u5efa\u8bae10-50\u4e2a\u533a\u95f4<\/li>\n
                  • \u6570\u636e\u91cf\u5927\u65f6\u53ef\u9002\u5f53\u589e\u52a0\u533a\u95f4\u6570<\/li>\n<\/ul>\n<\/li>\n
                  • \n

                    \u6807\u51c6\u5316\u7684\u4f7f\u7528：<\/p>\n

                      \n
                    • \u6bd4\u8f83\u4e0d\u540c\u6570\u636e\u96c6\u65f6\u4f7f\u7528 normalized=1<\/li>\n
                    • \u5173\u6ce8\u7edd\u5bf9\u6570\u91cf\u65f6\u4f7f\u7528 normalized=0<\/li>\n<\/ul>\n<\/li>\n

                      \u793a\u4f8b\u5e94\u7528<\/h4>\n

                      — \u793a\u4f8b1：\u7528\u6237\u81ea\u5b9a\u4e49\u5206\u7bb1\u5206\u6790\u6e29\u5ea6\u5206\u5e03<\/span>
                      \nSELECT<\/span> HISTOGRAM(<\/span>temperature,<\/span> 'user_input'<\/span>,<\/span> '[-10,0,10,20,30,40]'<\/span>,<\/span> 1<\/span>)<\/span>
                      \nFROM<\/span> weather_data
                      \nWHERE<\/span> city=<\/span>'Beijing'<\/span> AND<\/span> date<\/span> >=<\/span> '2024-01-01'<\/span>;<\/span><\/p>\n

                      — \u793a\u4f8b2：\u7ebf\u6027\u5206\u7bb1\u5206\u6790\u8ba2\u5355\u91d1\u989d<\/span>
                      \nSELECT<\/span> HISTOGRAM(<\/span>amount,<\/span> 'linear_bin'<\/span>,<\/span>
                      \n '{"start": 0, "width": 50, "count": 20, "infinity": true}'<\/span>,<\/span> 0<\/span>)<\/span>
                      \nFROM<\/span> orders
                      \nWHERE<\/span> created_time >=<\/span> NOW<\/span>(<\/span>)<\/span> –<\/span> INTERVAL<\/span> 7<\/span> DAY<\/span>;<\/span><\/p>\n

                      — \u793a\u4f8b3：\u5bf9\u6570\u5206\u7bb1\u5206\u6790\u54cd\u5e94\u65f6\u95f4<\/span>
                      \nSELECT<\/span> HISTOGRAM(<\/span>latency_ms,<\/span> 'log_bin'<\/span>,<\/span>
                      \n '{"start": 1, "factor": 2, "count": 15, "infinity": true}'<\/span>,<\/span> 1<\/span>)<\/span>
                      \nFROM<\/span> api_requests
                      \nWHERE<\/span> endpoint=<\/span>'\/api\/data'<\/span> AND<\/span> ts >=<\/span> NOW<\/span>(<\/span>)<\/span> –<\/span> INTERVAL<\/span> 1<\/span> DAY<\/span>;<\/span><\/p>\n

                      \u6ce8\u610f\u4e8b\u9879<\/h4>\n
                    • \u8fd4\u56de\u7ed3\u679c\u6309\u533a\u95f4\u987a\u5e8f\u6392\u5217<\/li>\n
                    • \u533a\u95f4\u91c7\u7528\u5de6\u5f00\u53f3\u95ed\u539f\u5219：(lower, upper]<\/li>\n
                    • NULL \u503c\u4f1a\u88ab\u81ea\u52a8\u5ffd\u7565<\/li>\n
                    • \u5f53 normalized=1 \u65f6，\u6240\u6709\u533a\u95f4\u7684 count \u503c\u603b\u548c\u4e3a1（\u9664\u975e\u6240\u6709\u6570\u636e\u90fd\u4e3aNULL）<\/li>\n
                    • \u4f7f\u7528 infinity=true \u65f6，\u4f1a\u81ea\u52a8\u6dfb\u52a0\u8fb9\u754c\u533a\u95f4\u5904\u7406\u6781\u503c<\/li>\n","protected":false},"excerpt":{"rendered":"

                      \u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.1k\u6b21\uff0c\u70b9\u8d5e9\u6b21\uff0c\u6536\u85cf9\u6b21\u3002HISTOGRAM\u51fd\u6570\u662f TDengine \u4e2d\u7684\u4e00\u4e2a\u805a\u5408\u51fd\u6570\uff0c\u7528\u4e8e\u5bf9\u6570\u503c\u6570\u636e\u8fdb\u884c\u76f4\u65b9\u56fe\u7edf\u8ba1\u5206\u6790\u3002\u5b83\u5c06\u6570\u636e\u6309\u7167\u6307\u5b9a\u7684\u533a\u95f4\uff08bins\uff09\u8fdb\u884c\u5206\u7ec4\u7edf\u8ba1\uff0c\u8fd4\u56de\u6bcf\u4e2a\u533a\u95f4\u5185\u6570\u636e\u7684\u6570\u91cf\u5206\u5e03\uff0c\u5e2e\u52a9\u7528\u6237\u7406\u89e3\u6570\u636e\u7684\u5206\u5e03\u7279\u5f81\u3002\u7528\u6237\u76f4\u63a5\u6307\u5b9a\u5206\u7bb1\u8fb9\u754c\u70b9\u3002bin_desc \u683c\u5f0f[\u8fb9\u754c\u70b91, \u8fb9\u754c\u70b92, \u8fb9\u754c\u70b93, …]\u8981\u6c42\u8fb9\u754c\u70b9\u5fc5\u987b\u662f\u6570\u503c\u7c7b\u578b\u8fb9\u754c\u70b9\u5fc5\u987b\u4e25\u683c\u9012\u589e\u81f3\u5c11\u5305\u542b2\u4e2a\u8fb9\u754c\u70b9\u751f\u6210\u7684\u533a\u95f4\u6570\u91cf = \u8fb9\u754c\u70b9\u6570\u91cf – 1\u793a\u4f8b– \u5c06\u6570\u636e\u5206\u4e3a3\u4e2a\u533a\u95f4\uff1a(0,3]\u3001(3,6]\u3001(6,9]<\/p>\n","protected":false},"author":2,"featured_media":50649,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[887,4076,4946,323,100,3832,4077,220],"topic":[],"class_list":["post-50650","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-iot","tag-tdengine","tag-tdengine-","tag-323","tag-100","tag-3832","tag-4077","tag-220"],"yoast_head":"\nTDengine \u7684 HISTOGRAM() \u51fd\u6570\u7528\u6237\u624b\u518c - 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1\u793a\u4f8b-- \u5c06\u6570\u636e\u5206\u4e3a3\u4e2a\u533a\u95f4\uff1a(0,3]\u3001(3,6]\u3001(6,9]","og_url":"https:\/\/www.wsisp.com\/helps\/50650.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2025-08-10T03:37:40+00:00","og_image":[{"url":"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/08\/20250810033731-689813fb3e84c.png"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"2 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/50650.html","url":"https:\/\/www.wsisp.com\/helps\/50650.html","name":"TDengine \u7684 HISTOGRAM() \u51fd\u6570\u7528\u6237\u624b\u518c - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2025-08-10T03:37:40+00:00","dateModified":"2025-08-10T03:37:40+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/50650.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/50650.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/50650.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"TDengine \u7684 HISTOGRAM() \u51fd\u6570\u7528\u6237\u624b\u518c"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/50650","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=50650"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/50650\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media\/50649"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=50650"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=50650"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=50650"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=50650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}