<!DOCTYPE html>
<html lang="zh-CN">
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=1">
    <title> </title>
    <meta name="generator" content="VuePress 1.8.2">
    <link rel="icon" href="/favicon.ico">
    <meta name="description" content=" ">
    <meta name="Description" content="Apache IoTDB: Time Series Database for IoT">
    <meta name="Keywords" content="TSDB, time series, time series database, IoTDB, IoT database, IoT data management,时序数据库, 时间序列管理, IoTDB, 物联网数据库, 实时数据库, 物联网数据管理, 物联网数据">
    <meta name="baidu-site-verification" content="wfKETzB3OT">
    <meta name="google-site-verification" content="mZWAoRY0yj_HAr-s47zHCGHzx5Ju-RVm5wDbPnwQYFo">
    
    <link rel="preload" href="/assets/css/0.styles.f7fca28c.css" as="style"><link rel="preload" href="/assets/js/app.13a2c569.js" as="script"><link rel="preload" href="/assets/js/3.7fccac46.js" as="script"><link rel="preload" href="/assets/js/637.fac6e239.js" as="script"><link rel="prefetch" href="/assets/js/10.61872ae5.js"><link rel="prefetch" href="/assets/js/100.cd07fbb4.js"><link rel="prefetch" href="/assets/js/101.7b887a78.js"><link rel="prefetch" href="/assets/js/102.888ac47b.js"><link rel="prefetch" href="/assets/js/103.edff174f.js"><link rel="prefetch" href="/assets/js/104.f049af68.js"><link rel="prefetch" href="/assets/js/105.f7c9efe5.js"><link rel="prefetch" href="/assets/js/106.2ba6adb1.js"><link rel="prefetch" href="/assets/js/107.d676f1a5.js"><link rel="prefetch" href="/assets/js/108.c3799be3.js"><link rel="prefetch" href="/assets/js/109.22c12024.js"><link rel="prefetch" href="/assets/js/11.a080efae.js"><link rel="prefetch" href="/assets/js/110.e988abeb.js"><link rel="prefetch" href="/assets/js/111.70e5507a.js"><link rel="prefetch" href="/assets/js/112.7e40d306.js"><link rel="prefetch" href="/assets/js/113.5f9eed75.js"><link rel="prefetch" href="/assets/js/114.12676666.js"><link rel="prefetch" href="/assets/js/115.de7d0451.js"><link rel="prefetch" href="/assets/js/116.9241daf0.js"><link rel="prefetch" href="/assets/js/117.f1572c4d.js"><link rel="prefetch" href="/assets/js/118.e8829e92.js"><link rel="prefetch" href="/assets/js/119.0b0c33f8.js"><link rel="prefetch" href="/assets/js/12.454ce3d8.js"><link rel="prefetch" href="/assets/js/120.0bf117bb.js"><link rel="prefetch" href="/assets/js/121.4ecd8344.js"><link rel="prefetch" href="/assets/js/122.f3a6aea0.js"><link rel="prefetch" href="/assets/js/123.4945f91b.js"><link rel="prefetch" href="/assets/js/124.41877e73.js"><link rel="prefetch" href="/assets/js/125.85775a08.js"><link rel="prefetch" href="/assets/js/126.60bc16f9.js"><link rel="prefetch" href="/assets/js/127.64f37463.js"><link rel="prefetch" href="/assets/js/128.bf1e94f3.js"><link rel="prefetch" href="/assets/js/129.66d9bb2b.js"><link rel="prefetch" href="/assets/js/13.c58bffc8.js"><link rel="prefetch" href="/assets/js/130.59874ca0.js"><link rel="prefetch" href="/assets/js/131.f9d5e913.js"><link rel="prefetch" href="/assets/js/132.a7e3ad59.js"><link rel="prefetch" href="/assets/js/133.25bc611b.js"><link rel="prefetch" href="/assets/js/134.031b80a3.js"><link rel="prefetch" href="/assets/js/135.63c51cd4.js"><link rel="prefetch" href="/assets/js/136.3035a447.js"><link rel="prefetch" href="/assets/js/137.f04f53d6.js"><link rel="prefetch" href="/assets/js/138.0d77670b.js"><link rel="prefetch" href="/assets/js/139.a4687aa3.js"><link rel="prefetch" href="/assets/js/14.939be0f9.js"><link rel="prefetch" href="/assets/js/140.1c3b9c8e.js"><link rel="prefetch" href="/assets/js/141.85a83839.js"><link rel="prefetch" href="/assets/js/142.7d8ad627.js"><link rel="prefetch" href="/assets/js/143.fbdc020f.js"><link rel="prefetch" href="/assets/js/144.d6b9f34b.js"><link rel="prefetch" href="/assets/js/145.4a65f13c.js"><link rel="prefetch" href="/assets/js/146.d6f1ef22.js"><link rel="prefetch" href="/assets/js/147.e33fe78c.js"><link rel="prefetch" href="/assets/js/148.1f001b51.js"><link rel="prefetch" href="/assets/js/149.d802d76b.js"><link rel="prefetch" href="/assets/js/15.843fe861.js"><link rel="prefetch" href="/assets/js/150.bf6e4446.js"><link rel="prefetch" href="/assets/js/151.1a3a9ecf.js"><link rel="prefetch" href="/assets/js/152.ca32b0c3.js"><link rel="prefetch" href="/assets/js/153.74bb0871.js"><link rel="prefetch" href="/assets/js/154.2e0647d0.js"><link rel="prefetch" href="/assets/js/155.d1c42f9d.js"><link rel="prefetch" href="/assets/js/156.dd3ef885.js"><link rel="prefetch" href="/assets/js/157.d0fa5d7e.js"><link rel="prefetch" href="/assets/js/158.d8ac80b6.js"><link rel="prefetch" href="/assets/js/159.7daff5e5.js"><link rel="prefetch" href="/assets/js/16.8d6c0ada.js"><link rel="prefetch" href="/assets/js/160.334e1792.js"><link rel="prefetch" href="/assets/js/161.ea35ffd3.js"><link rel="prefetch" href="/assets/js/162.a3e43ef6.js"><link rel="prefetch" href="/assets/js/163.63e5a86d.js"><link rel="prefetch" href="/assets/js/164.014d76e1.js"><link rel="prefetch" href="/assets/js/165.93a410f4.js"><link rel="prefetch" href="/assets/js/166.a5f56f78.js"><link rel="prefetch" href="/assets/js/167.51507116.js"><link rel="prefetch" href="/assets/js/168.34704422.js"><link rel="prefetch" href="/assets/js/169.0251848a.js"><link rel="prefetch" href="/assets/js/17.efe29df6.js"><link rel="prefetch" href="/assets/js/170.f9084320.js"><link rel="prefetch" href="/assets/js/171.ba1d2df7.js"><link rel="prefetch" href="/assets/js/172.8a7cd300.js"><link rel="prefetch" href="/assets/js/173.4d45b322.js"><link rel="prefetch" href="/assets/js/174.14ce1f9d.js"><link rel="prefetch" href="/assets/js/175.8ba92c6d.js"><link rel="prefetch" href="/assets/js/176.f83d84c6.js"><link rel="prefetch" href="/assets/js/177.e3ca589e.js"><link rel="prefetch" href="/assets/js/178.e26e2799.js"><link rel="prefetch" href="/assets/js/179.80f9f4ee.js"><link rel="prefetch" href="/assets/js/18.ec2f64fe.js"><link rel="prefetch" href="/assets/js/180.16830f5a.js"><link rel="prefetch" href="/assets/js/181.6c2dd09c.js"><link rel="prefetch" href="/assets/js/182.4b20bd4d.js"><link rel="prefetch" href="/assets/js/183.f1a9f3d0.js"><link rel="prefetch" href="/assets/js/184.4e828571.js"><link rel="prefetch" href="/assets/js/185.be70dd25.js"><link rel="prefetch" href="/assets/js/186.ddb365dd.js"><link rel="prefetch" href="/assets/js/187.f66f7f93.js"><link rel="prefetch" href="/assets/js/188.6a88c397.js"><link rel="prefetch" href="/assets/js/189.28897e83.js"><link rel="prefetch" href="/assets/js/19.e46591ce.js"><link rel="prefetch" href="/assets/js/190.a85849f1.js"><link rel="prefetch" href="/assets/js/191.9fd2f58a.js"><link rel="prefetch" href="/assets/js/192.1f3b6ca8.js"><link rel="prefetch" href="/assets/js/193.50aae911.js"><link rel="prefetch" href="/assets/js/194.e166c10d.js"><link rel="prefetch" href="/assets/js/195.1a1f9e4a.js"><link rel="prefetch" href="/assets/js/196.072c3ce0.js"><link rel="prefetch" href="/assets/js/197.36a569b3.js"><link rel="prefetch" href="/assets/js/198.ef935ad0.js"><link rel="prefetch" href="/assets/js/199.0614cb86.js"><link rel="prefetch" href="/assets/js/20.335cca54.js"><link rel="prefetch" href="/assets/js/200.e9583ef5.js"><link rel="prefetch" href="/assets/js/201.b4147cd7.js"><link rel="prefetch" href="/assets/js/202.655454f0.js"><link rel="prefetch" href="/assets/js/203.f00817d3.js"><link rel="prefetch" href="/assets/js/204.6f3bfde7.js"><link rel="prefetch" href="/assets/js/205.01353228.js"><link rel="prefetch" href="/assets/js/206.6d142fbd.js"><link rel="prefetch" href="/assets/js/207.f4f1071e.js"><link rel="prefetch" href="/assets/js/208.497a96dd.js"><link rel="prefetch" href="/assets/js/209.f813458b.js"><link rel="prefetch" href="/assets/js/21.8c3060b4.js"><link rel="prefetch" href="/assets/js/210.a45cff9c.js"><link rel="prefetch" href="/assets/js/211.5af25a9e.js"><link rel="prefetch" href="/assets/js/212.28908eba.js"><link rel="prefetch" href="/assets/js/213.93ca2d15.js"><link rel="prefetch" href="/assets/js/214.674059a0.js"><link rel="prefetch" href="/assets/js/215.d03b45be.js"><link rel="prefetch" href="/assets/js/216.64aebb7b.js"><link rel="prefetch" href="/assets/js/217.fd00686a.js"><link rel="prefetch" href="/assets/js/218.1bc04620.js"><link rel="prefetch" href="/assets/js/219.f93bf7a6.js"><link rel="prefetch" href="/assets/js/22.d30695a0.js"><link rel="prefetch" href="/assets/js/220.2a4ece08.js"><link rel="prefetch" href="/assets/js/221.42c08a34.js"><link rel="prefetch" href="/assets/js/222.598decbc.js"><link rel="prefetch" href="/assets/js/223.fb835c56.js"><link rel="prefetch" href="/assets/js/224.54855e83.js"><link rel="prefetch" href="/assets/js/225.3d94f453.js"><link rel="prefetch" href="/assets/js/226.2468bc8c.js"><link rel="prefetch" href="/assets/js/227.140240fe.js"><link rel="prefetch" href="/assets/js/228.eddc9919.js"><link rel="prefetch" href="/assets/js/229.7f4447ca.js"><link rel="prefetch" href="/assets/js/23.c21377c0.js"><link rel="prefetch" href="/assets/js/230.5f994ca9.js"><link rel="prefetch" href="/assets/js/231.2c87bfd0.js"><link rel="prefetch" href="/assets/js/232.491ed5e5.js"><link rel="prefetch" href="/assets/js/233.12245eff.js"><link rel="prefetch" href="/assets/js/234.da21e051.js"><link rel="prefetch" href="/assets/js/235.ad48abdb.js"><link rel="prefetch" href="/assets/js/236.3a295dec.js"><link rel="prefetch" href="/assets/js/237.84ff9c9b.js"><link rel="prefetch" href="/assets/js/238.627264aa.js"><link rel="prefetch" href="/assets/js/239.da37d07f.js"><link rel="prefetch" href="/assets/js/24.cc9cb1b0.js"><link rel="prefetch" href="/assets/js/240.f14cafaf.js"><link rel="prefetch" href="/assets/js/241.14ce6be3.js"><link rel="prefetch" href="/assets/js/242.9b6f988e.js"><link rel="prefetch" href="/assets/js/243.52a22828.js"><link rel="prefetch" href="/assets/js/244.41d248ca.js"><link rel="prefetch" href="/assets/js/245.1ba76fb4.js"><link rel="prefetch" href="/assets/js/246.cf8b4383.js"><link rel="prefetch" href="/assets/js/247.72a2b769.js"><link rel="prefetch" href="/assets/js/248.818a247a.js"><link rel="prefetch" href="/assets/js/249.095696b0.js"><link rel="prefetch" href="/assets/js/25.6b7591da.js"><link rel="prefetch" href="/assets/js/250.40e471ff.js"><link rel="prefetch" href="/assets/js/251.dd9c98c7.js"><link rel="prefetch" href="/assets/js/252.322c13d1.js"><link rel="prefetch" href="/assets/js/253.a74589e8.js"><link rel="prefetch" href="/assets/js/254.c0b11411.js"><link rel="prefetch" href="/assets/js/255.a31b5869.js"><link rel="prefetch" href="/assets/js/256.65a4a631.js"><link rel="prefetch" href="/assets/js/257.6c275bae.js"><link rel="prefetch" href="/assets/js/258.29edab81.js"><link rel="prefetch" href="/assets/js/259.a44df503.js"><link rel="prefetch" href="/assets/js/26.607efd21.js"><link rel="prefetch" href="/assets/js/260.e829b6db.js"><link rel="prefetch" href="/assets/js/261.b0af8f05.js"><link rel="prefetch" href="/assets/js/262.16e28745.js"><link rel="prefetch" href="/assets/js/263.bd55ccfb.js"><link rel="prefetch" href="/assets/js/264.542e2765.js"><link rel="prefetch" href="/assets/js/265.7fbdc730.js"><link rel="prefetch" href="/assets/js/266.d5354498.js"><link rel="prefetch" href="/assets/js/267.4fa2b728.js"><link rel="prefetch" href="/assets/js/268.d8050f72.js"><link rel="prefetch" href="/assets/js/269.860f97fb.js"><link rel="prefetch" href="/assets/js/27.9e25f953.js"><link rel="prefetch" href="/assets/js/270.d4607b7c.js"><link rel="prefetch" href="/assets/js/271.32e58adb.js"><link rel="prefetch" href="/assets/js/272.16c3fb95.js"><link rel="prefetch" href="/assets/js/273.c6b08152.js"><link rel="prefetch" href="/assets/js/274.ad95be0e.js"><link rel="prefetch" href="/assets/js/275.5f216f81.js"><link rel="prefetch" href="/assets/js/276.d92d5f9c.js"><link rel="prefetch" href="/assets/js/277.3c17ccd3.js"><link rel="prefetch" href="/assets/js/278.0c8cae32.js"><link rel="prefetch" href="/assets/js/279.dcd3c96d.js"><link rel="prefetch" href="/assets/js/28.de5fbffd.js"><link rel="prefetch" href="/assets/js/280.5bf9735e.js"><link rel="prefetch" href="/assets/js/281.ede2be97.js"><link rel="prefetch" href="/assets/js/282.39c15f23.js"><link rel="prefetch" href="/assets/js/283.e1c65b67.js"><link rel="prefetch" href="/assets/js/284.f3de51ff.js"><link rel="prefetch" href="/assets/js/285.07e0a191.js"><link rel="prefetch" href="/assets/js/286.d67567fb.js"><link rel="prefetch" href="/assets/js/287.b1ba4806.js"><link rel="prefetch" href="/assets/js/288.58158555.js"><link rel="prefetch" href="/assets/js/289.1070b060.js"><link rel="prefetch" href="/assets/js/29.a31435b1.js"><link rel="prefetch" href="/assets/js/290.4c4ff771.js"><link rel="prefetch" href="/assets/js/291.05d7dacb.js"><link rel="prefetch" href="/assets/js/292.c6b2ff86.js"><link rel="prefetch" href="/assets/js/293.dd9ac7d5.js"><link rel="prefetch" href="/assets/js/294.0ad93593.js"><link rel="prefetch" href="/assets/js/295.10a4d3cc.js"><link rel="prefetch" href="/assets/js/296.8dd679cd.js"><link rel="prefetch" href="/assets/js/297.958699f4.js"><link rel="prefetch" href="/assets/js/298.db46105e.js"><link rel="prefetch" href="/assets/js/299.98788b55.js"><link rel="prefetch" href="/assets/js/30.2a46f39a.js"><link rel="prefetch" href="/assets/js/300.7171d756.js"><link rel="prefetch" href="/assets/js/301.a327ccf9.js"><link rel="prefetch" href="/assets/js/302.eddbbf46.js"><link rel="prefetch" href="/assets/js/303.011a1812.js"><link rel="prefetch" href="/assets/js/304.b3d2809d.js"><link rel="prefetch" href="/assets/js/305.c7964909.js"><link rel="prefetch" href="/assets/js/306.1deec4af.js"><link rel="prefetch" href="/assets/js/307.99fa3519.js"><link rel="prefetch" href="/assets/js/308.71ea079a.js"><link rel="prefetch" href="/assets/js/309.cb8ba2cc.js"><link rel="prefetch" href="/assets/js/31.fab44020.js"><link rel="prefetch" href="/assets/js/310.0aa0c0b3.js"><link rel="prefetch" href="/assets/js/311.b4083583.js"><link rel="prefetch" href="/assets/js/312.f482271f.js"><link rel="prefetch" href="/assets/js/313.f9d39443.js"><link rel="prefetch" href="/assets/js/314.a2d1f5e3.js"><link rel="prefetch" href="/assets/js/315.3fb90439.js"><link rel="prefetch" href="/assets/js/316.c0f044f0.js"><link rel="prefetch" href="/assets/js/317.dddc1a4a.js"><link rel="prefetch" href="/assets/js/318.3254e19d.js"><link rel="prefetch" href="/assets/js/319.91dfc2a0.js"><link rel="prefetch" href="/assets/js/32.8f287f6a.js"><link rel="prefetch" href="/assets/js/320.106bf450.js"><link rel="prefetch" href="/assets/js/321.82f34bcd.js"><link rel="prefetch" href="/assets/js/322.eeef9dc9.js"><link rel="prefetch" href="/assets/js/323.c75babb0.js"><link rel="prefetch" href="/assets/js/324.d54a6492.js"><link rel="prefetch" href="/assets/js/325.76b7273b.js"><link rel="prefetch" href="/assets/js/326.4e8805ea.js"><link rel="prefetch" href="/assets/js/327.d62d13a8.js"><link rel="prefetch" href="/assets/js/328.3ca46a63.js"><link rel="prefetch" href="/assets/js/329.6a107c33.js"><link rel="prefetch" href="/assets/js/33.5af74851.js"><link rel="prefetch" href="/assets/js/330.b4d8ab0b.js"><link rel="prefetch" href="/assets/js/331.618f6def.js"><link rel="prefetch" href="/assets/js/332.3d4c9612.js"><link rel="prefetch" href="/assets/js/333.117e8020.js"><link rel="prefetch" href="/assets/js/334.2fe8d9b7.js"><link rel="prefetch" href="/assets/js/335.0c31be40.js"><link rel="prefetch" href="/assets/js/336.351485be.js"><link rel="prefetch" href="/assets/js/337.5a7bfc08.js"><link rel="prefetch" href="/assets/js/338.6c7d249f.js"><link rel="prefetch" href="/assets/js/339.682690f4.js"><link rel="prefetch" href="/assets/js/34.5dfe1291.js"><link rel="prefetch" href="/assets/js/340.b5cdb42e.js"><link rel="prefetch" href="/assets/js/341.fb27a06c.js"><link rel="prefetch" href="/assets/js/342.8e2f44ea.js"><link rel="prefetch" href="/assets/js/343.f7bec8a4.js"><link rel="prefetch" href="/assets/js/344.738defee.js"><link rel="prefetch" href="/assets/js/345.e716023b.js"><link rel="prefetch" href="/assets/js/346.0838d343.js"><link rel="prefetch" href="/assets/js/347.ea14c3a2.js"><link rel="prefetch" href="/assets/js/348.bf57b876.js"><link rel="prefetch" href="/assets/js/349.c51797f5.js"><link rel="prefetch" href="/assets/js/35.0a7b7db7.js"><link rel="prefetch" href="/assets/js/350.9f56c7ca.js"><link rel="prefetch" href="/assets/js/351.6b7a1c79.js"><link rel="prefetch" href="/assets/js/352.4cc5a7ff.js"><link rel="prefetch" href="/assets/js/353.76cd6b37.js"><link rel="prefetch" href="/assets/js/354.d811ac0e.js"><link rel="prefetch" href="/assets/js/355.c5ffb190.js"><link rel="prefetch" href="/assets/js/356.29e3e2cd.js"><link rel="prefetch" href="/assets/js/357.359b4fdf.js"><link rel="prefetch" href="/assets/js/358.02bee4be.js"><link rel="prefetch" href="/assets/js/359.20c5d24f.js"><link rel="prefetch" href="/assets/js/36.8a8c44ca.js"><link rel="prefetch" href="/assets/js/360.42ffe98f.js"><link rel="prefetch" href="/assets/js/361.9aa30956.js"><link rel="prefetch" href="/assets/js/362.b3bfe78e.js"><link rel="prefetch" href="/assets/js/363.715dceba.js"><link rel="prefetch" href="/assets/js/364.1bf938a5.js"><link rel="prefetch" href="/assets/js/365.7712ed2c.js"><link rel="prefetch" href="/assets/js/366.3b48b0f0.js"><link rel="prefetch" href="/assets/js/367.e3bf3b9c.js"><link rel="prefetch" href="/assets/js/368.ee547bda.js"><link rel="prefetch" href="/assets/js/369.736a646d.js"><link rel="prefetch" href="/assets/js/37.7ed1a8d1.js"><link rel="prefetch" href="/assets/js/370.0cd94992.js"><link rel="prefetch" href="/assets/js/371.9c126e32.js"><link rel="prefetch" href="/assets/js/372.e0dae98b.js"><link rel="prefetch" href="/assets/js/373.3f497d20.js"><link rel="prefetch" href="/assets/js/374.8265b294.js"><link rel="prefetch" href="/assets/js/375.1691bf1a.js"><link rel="prefetch" href="/assets/js/376.d1bc249a.js"><link rel="prefetch" href="/assets/js/377.a70ed1ed.js"><link rel="prefetch" href="/assets/js/378.06ee3a0c.js"><link rel="prefetch" href="/assets/js/379.d482914b.js"><link rel="prefetch" href="/assets/js/38.8d2f9b02.js"><link rel="prefetch" href="/assets/js/380.772ce624.js"><link rel="prefetch" href="/assets/js/381.272a5a56.js"><link rel="prefetch" href="/assets/js/382.538e2883.js"><link rel="prefetch" href="/assets/js/383.27a09ab5.js"><link rel="prefetch" href="/assets/js/384.f6699047.js"><link rel="prefetch" href="/assets/js/385.1753768d.js"><link rel="prefetch" href="/assets/js/386.4a939926.js"><link rel="prefetch" href="/assets/js/387.b6fc5efc.js"><link rel="prefetch" href="/assets/js/388.39561bad.js"><link rel="prefetch" href="/assets/js/389.39d88d6c.js"><link rel="prefetch" href="/assets/js/39.977e55a2.js"><link rel="prefetch" href="/assets/js/390.257ba104.js"><link rel="prefetch" href="/assets/js/391.7fee02e7.js"><link rel="prefetch" href="/assets/js/392.d06b100d.js"><link rel="prefetch" href="/assets/js/393.9a381cee.js"><link rel="prefetch" href="/assets/js/394.ff541e95.js"><link rel="prefetch" href="/assets/js/395.1762634a.js"><link rel="prefetch" href="/assets/js/396.18935752.js"><link rel="prefetch" href="/assets/js/397.3b471025.js"><link rel="prefetch" href="/assets/js/398.c19c7de2.js"><link rel="prefetch" href="/assets/js/399.ff63d0ee.js"><link rel="prefetch" href="/assets/js/4.b5d5c8b1.js"><link rel="prefetch" href="/assets/js/40.6f6fb483.js"><link rel="prefetch" href="/assets/js/400.9512b32d.js"><link rel="prefetch" href="/assets/js/401.0dd750ee.js"><link rel="prefetch" href="/assets/js/402.89f4cfc1.js"><link rel="prefetch" href="/assets/js/403.03cab865.js"><link rel="prefetch" href="/assets/js/404.e149b178.js"><link rel="prefetch" href="/assets/js/405.5757c50b.js"><link rel="prefetch" href="/assets/js/406.275df76e.js"><link rel="prefetch" href="/assets/js/407.60ff3fd6.js"><link rel="prefetch" href="/assets/js/408.a3278547.js"><link rel="prefetch" href="/assets/js/409.82295bb0.js"><link rel="prefetch" href="/assets/js/41.f1dd1831.js"><link rel="prefetch" href="/assets/js/410.4908ddb7.js"><link rel="prefetch" href="/assets/js/411.a1668ba1.js"><link rel="prefetch" href="/assets/js/412.5f32829d.js"><link rel="prefetch" href="/assets/js/413.2073ec9e.js"><link rel="prefetch" href="/assets/js/414.3b925d0b.js"><link rel="prefetch" href="/assets/js/415.60574f9c.js"><link rel="prefetch" href="/assets/js/416.a4d5a572.js"><link rel="prefetch" href="/assets/js/417.a50f9fce.js"><link rel="prefetch" href="/assets/js/418.b7270715.js"><link rel="prefetch" href="/assets/js/419.0160b711.js"><link rel="prefetch" href="/assets/js/42.2678c675.js"><link rel="prefetch" href="/assets/js/420.eceb0610.js"><link rel="prefetch" href="/assets/js/421.6d223975.js"><link rel="prefetch" href="/assets/js/422.37d30681.js"><link rel="prefetch" href="/assets/js/423.cdde877a.js"><link rel="prefetch" href="/assets/js/424.e6b188c7.js"><link rel="prefetch" href="/assets/js/425.07916e69.js"><link rel="prefetch" href="/assets/js/426.fe282fd2.js"><link rel="prefetch" href="/assets/js/427.091fed79.js"><link rel="prefetch" href="/assets/js/428.018905f3.js"><link rel="prefetch" href="/assets/js/429.1d2ba504.js"><link rel="prefetch" href="/assets/js/43.5a7a89fd.js"><link rel="prefetch" href="/assets/js/430.0fdf8f0b.js"><link rel="prefetch" href="/assets/js/431.820d99bb.js"><link rel="prefetch" href="/assets/js/432.43e9cb10.js"><link rel="prefetch" href="/assets/js/433.ae737c26.js"><link rel="prefetch" href="/assets/js/434.d0cb3962.js"><link rel="prefetch" href="/assets/js/435.f2e9a9f9.js"><link rel="prefetch" href="/assets/js/436.443e4e28.js"><link rel="prefetch" href="/assets/js/437.9b7c6a47.js"><link rel="prefetch" href="/assets/js/438.18a4a09c.js"><link rel="prefetch" href="/assets/js/439.4758b8a3.js"><link rel="prefetch" href="/assets/js/44.a3a87e08.js"><link rel="prefetch" href="/assets/js/440.bdc71883.js"><link rel="prefetch" href="/assets/js/441.9a6fe71c.js"><link rel="prefetch" href="/assets/js/442.e535e9e8.js"><link rel="prefetch" href="/assets/js/443.f4faca82.js"><link rel="prefetch" href="/assets/js/444.b473988e.js"><link rel="prefetch" href="/assets/js/445.78ac5385.js"><link rel="prefetch" href="/assets/js/446.f28a3730.js"><link rel="prefetch" href="/assets/js/447.b750645d.js"><link rel="prefetch" href="/assets/js/448.56a3f163.js"><link rel="prefetch" href="/assets/js/449.25ea6c3f.js"><link rel="prefetch" href="/assets/js/45.20484792.js"><link rel="prefetch" href="/assets/js/450.2c33d110.js"><link rel="prefetch" href="/assets/js/451.d3686bb4.js"><link rel="prefetch" href="/assets/js/452.9b77f332.js"><link rel="prefetch" href="/assets/js/453.0e2b7abb.js"><link rel="prefetch" href="/assets/js/454.afd716c0.js"><link rel="prefetch" href="/assets/js/455.fa872f53.js"><link rel="prefetch" href="/assets/js/456.f98176ff.js"><link rel="prefetch" href="/assets/js/457.a3a79351.js"><link rel="prefetch" href="/assets/js/458.9c216200.js"><link rel="prefetch" href="/assets/js/459.b8a82b6b.js"><link rel="prefetch" href="/assets/js/46.0681e191.js"><link rel="prefetch" href="/assets/js/460.eac79b47.js"><link rel="prefetch" href="/assets/js/461.a67af417.js"><link rel="prefetch" href="/assets/js/462.64546845.js"><link rel="prefetch" href="/assets/js/463.3a6bb1ff.js"><link rel="prefetch" href="/assets/js/464.74201d93.js"><link rel="prefetch" href="/assets/js/465.d85e632a.js"><link rel="prefetch" href="/assets/js/466.4fc5a167.js"><link rel="prefetch" href="/assets/js/467.07d37400.js"><link rel="prefetch" href="/assets/js/468.96853156.js"><link rel="prefetch" href="/assets/js/469.a50ae16a.js"><link rel="prefetch" href="/assets/js/47.ee804674.js"><link rel="prefetch" href="/assets/js/470.6cf56bd5.js"><link rel="prefetch" href="/assets/js/471.59484050.js"><link rel="prefetch" href="/assets/js/472.ddf64aa7.js"><link rel="prefetch" href="/assets/js/473.95a896c2.js"><link rel="prefetch" href="/assets/js/474.d7ef72d1.js"><link rel="prefetch" href="/assets/js/475.a4c47cfb.js"><link rel="prefetch" href="/assets/js/476.22ee9a93.js"><link rel="prefetch" href="/assets/js/477.b3ba19f3.js"><link rel="prefetch" href="/assets/js/478.864bbf5c.js"><link rel="prefetch" href="/assets/js/479.4a7a598c.js"><link rel="prefetch" href="/assets/js/48.de09959f.js"><link rel="prefetch" href="/assets/js/480.ccc08278.js"><link rel="prefetch" href="/assets/js/481.8f44cbac.js"><link rel="prefetch" href="/assets/js/482.7409d304.js"><link rel="prefetch" href="/assets/js/483.2aa7b9f7.js"><link rel="prefetch" href="/assets/js/484.fba5806a.js"><link rel="prefetch" href="/assets/js/485.a4fab60f.js"><link rel="prefetch" href="/assets/js/486.194aeb49.js"><link rel="prefetch" href="/assets/js/487.3ae9d4dc.js"><link rel="prefetch" href="/assets/js/488.37514b2b.js"><link rel="prefetch" href="/assets/js/489.31acbbe7.js"><link rel="prefetch" href="/assets/js/49.4b0fe119.js"><link rel="prefetch" href="/assets/js/490.4f33761a.js"><link rel="prefetch" href="/assets/js/491.de9b8f18.js"><link rel="prefetch" href="/assets/js/492.a78d9437.js"><link rel="prefetch" href="/assets/js/493.0adb4a52.js"><link rel="prefetch" href="/assets/js/494.d458943e.js"><link rel="prefetch" href="/assets/js/495.c7d99c90.js"><link rel="prefetch" href="/assets/js/496.eee126ee.js"><link rel="prefetch" href="/assets/js/497.22135cf5.js"><link rel="prefetch" href="/assets/js/498.8c2002be.js"><link rel="prefetch" href="/assets/js/499.b727490e.js"><link rel="prefetch" href="/assets/js/5.5a730a22.js"><link rel="prefetch" href="/assets/js/50.bebd6a8f.js"><link rel="prefetch" href="/assets/js/500.ebb3e02b.js"><link rel="prefetch" href="/assets/js/501.2ec75ec2.js"><link rel="prefetch" href="/assets/js/502.999d21ae.js"><link rel="prefetch" href="/assets/js/503.3415452d.js"><link rel="prefetch" href="/assets/js/504.cc899380.js"><link rel="prefetch" href="/assets/js/505.c001019c.js"><link rel="prefetch" href="/assets/js/506.ee989b6a.js"><link rel="prefetch" href="/assets/js/507.4316a0d6.js"><link rel="prefetch" href="/assets/js/508.b4b6e06c.js"><link rel="prefetch" href="/assets/js/509.97911be7.js"><link rel="prefetch" href="/assets/js/51.268a7400.js"><link rel="prefetch" href="/assets/js/510.0b6fdfff.js"><link rel="prefetch" href="/assets/js/511.90321f3b.js"><link rel="prefetch" href="/assets/js/512.e385bb2f.js"><link rel="prefetch" href="/assets/js/513.cf5a70ba.js"><link rel="prefetch" href="/assets/js/514.39c6f992.js"><link rel="prefetch" href="/assets/js/515.28c955af.js"><link rel="prefetch" href="/assets/js/516.9c03d034.js"><link rel="prefetch" href="/assets/js/517.50fb0287.js"><link rel="prefetch" href="/assets/js/518.f1fae3ac.js"><link rel="prefetch" href="/assets/js/519.0cd16549.js"><link rel="prefetch" href="/assets/js/52.b3ba6c43.js"><link rel="prefetch" href="/assets/js/520.e76896cc.js"><link rel="prefetch" href="/assets/js/521.4a4cf9d6.js"><link rel="prefetch" href="/assets/js/522.d83c5f3d.js"><link rel="prefetch" href="/assets/js/523.e4a7ecef.js"><link rel="prefetch" href="/assets/js/524.36e761c2.js"><link rel="prefetch" href="/assets/js/525.6317ecc2.js"><link rel="prefetch" href="/assets/js/526.4c2caa69.js"><link rel="prefetch" href="/assets/js/527.57c5ab09.js"><link rel="prefetch" href="/assets/js/528.8bb25375.js"><link rel="prefetch" href="/assets/js/529.afecb950.js"><link rel="prefetch" href="/assets/js/53.fe2684d4.js"><link rel="prefetch" href="/assets/js/530.75117402.js"><link rel="prefetch" href="/assets/js/531.8f5561eb.js"><link rel="prefetch" href="/assets/js/532.eb990d2c.js"><link rel="prefetch" href="/assets/js/533.504e3919.js"><link rel="prefetch" href="/assets/js/534.ea4173a0.js"><link rel="prefetch" href="/assets/js/535.bd37f9ad.js"><link rel="prefetch" href="/assets/js/536.e2e7eb7a.js"><link rel="prefetch" href="/assets/js/537.6c0a0dcb.js"><link rel="prefetch" href="/assets/js/538.0ce6d97b.js"><link rel="prefetch" href="/assets/js/539.6a2cada2.js"><link rel="prefetch" href="/assets/js/54.abc729a1.js"><link rel="prefetch" href="/assets/js/540.89a5b6ff.js"><link rel="prefetch" href="/assets/js/541.9a2d47d4.js"><link rel="prefetch" href="/assets/js/542.aeb476e7.js"><link rel="prefetch" href="/assets/js/543.f6480bc9.js"><link rel="prefetch" href="/assets/js/544.87ded954.js"><link rel="prefetch" href="/assets/js/545.dca671b2.js"><link rel="prefetch" href="/assets/js/546.0eea9df9.js"><link rel="prefetch" href="/assets/js/547.58eca1e8.js"><link rel="prefetch" href="/assets/js/548.69640134.js"><link rel="prefetch" href="/assets/js/549.9e2f3a65.js"><link rel="prefetch" href="/assets/js/55.98f29d94.js"><link rel="prefetch" href="/assets/js/550.344c4ac6.js"><link rel="prefetch" href="/assets/js/551.3935c91c.js"><link rel="prefetch" href="/assets/js/552.2086fbe8.js"><link rel="prefetch" href="/assets/js/553.2aceadd3.js"><link rel="prefetch" href="/assets/js/554.1afd3108.js"><link rel="prefetch" href="/assets/js/555.16f1c7e8.js"><link rel="prefetch" href="/assets/js/556.2c9211d3.js"><link rel="prefetch" href="/assets/js/557.422b5e0d.js"><link rel="prefetch" href="/assets/js/558.1712976d.js"><link rel="prefetch" href="/assets/js/559.0052055f.js"><link rel="prefetch" href="/assets/js/56.fcf66dfb.js"><link rel="prefetch" href="/assets/js/560.e445bc77.js"><link rel="prefetch" href="/assets/js/561.cf50436f.js"><link rel="prefetch" href="/assets/js/562.e9d4e67d.js"><link rel="prefetch" href="/assets/js/563.15836f75.js"><link rel="prefetch" href="/assets/js/564.695e5d1f.js"><link rel="prefetch" href="/assets/js/565.e891cf80.js"><link rel="prefetch" href="/assets/js/566.1ef531d4.js"><link rel="prefetch" href="/assets/js/567.c04c597f.js"><link rel="prefetch" href="/assets/js/568.bbc2c743.js"><link rel="prefetch" href="/assets/js/569.7fca8ca1.js"><link rel="prefetch" href="/assets/js/57.a1d6e8e4.js"><link rel="prefetch" href="/assets/js/570.db8c6287.js"><link rel="prefetch" href="/assets/js/571.4321f994.js"><link rel="prefetch" href="/assets/js/572.8ab39750.js"><link rel="prefetch" href="/assets/js/573.e7b53730.js"><link rel="prefetch" href="/assets/js/574.637b580f.js"><link rel="prefetch" href="/assets/js/575.76b4f37b.js"><link rel="prefetch" href="/assets/js/576.f7e9268a.js"><link rel="prefetch" href="/assets/js/577.45296474.js"><link rel="prefetch" href="/assets/js/578.21525c52.js"><link rel="prefetch" href="/assets/js/579.0d0ccbb6.js"><link rel="prefetch" href="/assets/js/58.583ad48f.js"><link rel="prefetch" href="/assets/js/580.ae1d1ab5.js"><link rel="prefetch" href="/assets/js/581.f636f137.js"><link rel="prefetch" href="/assets/js/582.2feabe66.js"><link rel="prefetch" href="/assets/js/583.fb18929b.js"><link rel="prefetch" href="/assets/js/584.f79f539f.js"><link rel="prefetch" href="/assets/js/585.bf68105e.js"><link rel="prefetch" href="/assets/js/586.1d3cb142.js"><link rel="prefetch" href="/assets/js/587.f4bc14f0.js"><link rel="prefetch" href="/assets/js/588.e9be58d3.js"><link rel="prefetch" href="/assets/js/589.cf0068e8.js"><link rel="prefetch" href="/assets/js/59.609855d3.js"><link rel="prefetch" href="/assets/js/590.ac3b9f3f.js"><link rel="prefetch" href="/assets/js/591.61f4342c.js"><link rel="prefetch" href="/assets/js/592.c8b710ce.js"><link rel="prefetch" href="/assets/js/593.13bca0bd.js"><link rel="prefetch" href="/assets/js/594.49bc91f0.js"><link rel="prefetch" href="/assets/js/595.65755c43.js"><link rel="prefetch" href="/assets/js/596.85201e85.js"><link rel="prefetch" href="/assets/js/597.5968c2d2.js"><link rel="prefetch" href="/assets/js/598.cb10385e.js"><link rel="prefetch" href="/assets/js/599.329919fd.js"><link rel="prefetch" href="/assets/js/6.d05ff7d1.js"><link rel="prefetch" href="/assets/js/60.6192c5e6.js"><link rel="prefetch" href="/assets/js/600.6c4a484c.js"><link rel="prefetch" href="/assets/js/601.4461c2ae.js"><link rel="prefetch" href="/assets/js/602.a8d3fc33.js"><link rel="prefetch" href="/assets/js/603.ca2bb5fe.js"><link rel="prefetch" href="/assets/js/604.db803fb9.js"><link rel="prefetch" href="/assets/js/605.8ff2abfc.js"><link rel="prefetch" href="/assets/js/606.7113d146.js"><link rel="prefetch" href="/assets/js/607.f874afeb.js"><link rel="prefetch" href="/assets/js/608.69e0d555.js"><link rel="prefetch" href="/assets/js/609.e3e51762.js"><link rel="prefetch" href="/assets/js/61.11dbc940.js"><link rel="prefetch" href="/assets/js/610.48114a8b.js"><link rel="prefetch" href="/assets/js/611.20f5c8cd.js"><link rel="prefetch" href="/assets/js/612.49cf5c1f.js"><link rel="prefetch" href="/assets/js/613.c5d972ee.js"><link rel="prefetch" href="/assets/js/614.3712b906.js"><link rel="prefetch" href="/assets/js/615.0dfd0610.js"><link rel="prefetch" href="/assets/js/616.c60d74e0.js"><link rel="prefetch" href="/assets/js/617.05e47e1d.js"><link rel="prefetch" href="/assets/js/618.6f1c5ad5.js"><link rel="prefetch" href="/assets/js/619.6ab318a1.js"><link rel="prefetch" href="/assets/js/62.75354024.js"><link rel="prefetch" href="/assets/js/620.901c5159.js"><link rel="prefetch" href="/assets/js/621.add87549.js"><link rel="prefetch" href="/assets/js/622.408530c5.js"><link rel="prefetch" href="/assets/js/623.1aa20ea9.js"><link rel="prefetch" href="/assets/js/624.8616d341.js"><link rel="prefetch" href="/assets/js/625.7bdaa05f.js"><link rel="prefetch" href="/assets/js/626.6ca37760.js"><link rel="prefetch" href="/assets/js/627.1e67d181.js"><link rel="prefetch" href="/assets/js/628.69e16730.js"><link rel="prefetch" href="/assets/js/629.b7fbb50d.js"><link rel="prefetch" href="/assets/js/63.d3d8a2a7.js"><link rel="prefetch" href="/assets/js/630.a391b3de.js"><link rel="prefetch" href="/assets/js/631.f86fc53e.js"><link rel="prefetch" href="/assets/js/632.c1a60649.js"><link rel="prefetch" href="/assets/js/633.8ba0507c.js"><link rel="prefetch" href="/assets/js/634.549f3a14.js"><link rel="prefetch" href="/assets/js/635.c34e46b0.js"><link rel="prefetch" href="/assets/js/636.b9a9a30b.js"><link rel="prefetch" href="/assets/js/638.38c874bf.js"><link rel="prefetch" href="/assets/js/639.2cecf50a.js"><link rel="prefetch" href="/assets/js/64.fb01d06c.js"><link rel="prefetch" href="/assets/js/640.c9f97a1c.js"><link rel="prefetch" href="/assets/js/641.dc3dda81.js"><link rel="prefetch" href="/assets/js/642.b5923801.js"><link rel="prefetch" href="/assets/js/65.a5f22217.js"><link rel="prefetch" href="/assets/js/66.a48e0353.js"><link rel="prefetch" href="/assets/js/67.169d7837.js"><link rel="prefetch" href="/assets/js/68.27e92833.js"><link rel="prefetch" href="/assets/js/69.7643a0cf.js"><link rel="prefetch" href="/assets/js/7.63385f53.js"><link rel="prefetch" href="/assets/js/70.419bba25.js"><link rel="prefetch" href="/assets/js/71.ba04ac8a.js"><link rel="prefetch" href="/assets/js/72.6e7b692c.js"><link rel="prefetch" href="/assets/js/73.13285f8b.js"><link rel="prefetch" href="/assets/js/74.f87a5261.js"><link rel="prefetch" href="/assets/js/75.5e041d2a.js"><link rel="prefetch" href="/assets/js/76.f5339a14.js"><link rel="prefetch" href="/assets/js/77.d91c44df.js"><link rel="prefetch" href="/assets/js/78.29e9ac14.js"><link rel="prefetch" href="/assets/js/79.4b3118ff.js"><link rel="prefetch" href="/assets/js/8.901e16a3.js"><link rel="prefetch" href="/assets/js/80.8e295801.js"><link rel="prefetch" href="/assets/js/81.6d040b80.js"><link rel="prefetch" href="/assets/js/82.abf945e4.js"><link rel="prefetch" href="/assets/js/83.9bd95a69.js"><link rel="prefetch" href="/assets/js/84.bbc5db65.js"><link rel="prefetch" href="/assets/js/85.65463e7b.js"><link rel="prefetch" href="/assets/js/86.f64f6205.js"><link rel="prefetch" href="/assets/js/87.0260cfef.js"><link rel="prefetch" href="/assets/js/88.20d35720.js"><link rel="prefetch" href="/assets/js/89.87aaf95d.js"><link rel="prefetch" href="/assets/js/9.639ec32e.js"><link rel="prefetch" href="/assets/js/90.aca688c1.js"><link rel="prefetch" href="/assets/js/91.209eeece.js"><link rel="prefetch" href="/assets/js/92.6569647a.js"><link rel="prefetch" href="/assets/js/93.8b68023f.js"><link rel="prefetch" href="/assets/js/94.f32ead7e.js"><link rel="prefetch" href="/assets/js/95.953de281.js"><link rel="prefetch" href="/assets/js/96.3b33cb4c.js"><link rel="prefetch" href="/assets/js/97.f1ecb3a8.js"><link rel="prefetch" href="/assets/js/98.99874bfb.js"><link rel="prefetch" href="/assets/js/99.642326ea.js"><link rel="prefetch" href="/assets/js/vendors~docsearch.ac6383e3.js">
    <link rel="stylesheet" href="/assets/css/0.styles.f7fca28c.css">
  </head>
  <body>
    <div id="app" data-server-rendered="true"><div class="theme-container"><header class="navbar"><div class="sidebar-button"><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" role="img" viewBox="0 0 448 512" class="icon"><path fill="currentColor" d="M436 124H12c-6.627 0-12-5.373-12-12V80c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12z"></path></svg></div> <a href="/zh/" class="home-link router-link-active"><img src="/img/logo.png" alt=" " class="logo"></a> <div class="links"><div class="search-box"><input aria-label="Search" autocomplete="off" spellcheck="false" value=""> <!----></div> <nav class="nav-links can-hide"><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">文档</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/zh/UserGuide/Master/QuickStart/QuickStart.html" class="nav-link">In progress</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.12.x/QuickStart/QuickStart.html" class="nav-link">V0.12.x</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.11.x/Get Started/QuickStart.html" class="nav-link">V0.11.x</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.10.x/Get Started/QuickStart.html" class="nav-link">V0.10.x</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.9.x/0-Get Started/1-QuickStart.html" class="nav-link">V0.9.x</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.8.x/0-Get Started/1-QuickStart.html" class="nav-link">V0.8.x</a></li></ul></div></div><div class="nav-item"><a href="/zh/SystemDesign/Architecture/Architecture.html" class="nav-link">系统设计</a></div><div class="nav-item"><a href="/zh/Download/" class="nav-link">下载</a></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">社区</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="https://cwiki.apache.org/confluence/display/iotdb" class="nav-link external">
  Wiki
  <!----></a></li><li class="dropdown-item"><!----> <a href="/zh/Community/Community-Project Committers.html" class="nav-link">开发人员</a></li><li class="dropdown-item"><!----> <a href="/zh/Community/Community-Powered By.html" class="nav-link">技术支持</a></li><li class="dropdown-item"><!----> <a href="/Community/Materials.html" class="nav-link">活动与报告</a></li><li class="dropdown-item"><!----> <a href="/zh/Community/Feedback.html" class="nav-link">交流与反馈</a></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">开发</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/zh/Development/VoteRelease.html" class="nav-link">如何投票</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/HowToCommit.html" class="nav-link">如何提交代码</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/Committer.html" class="nav-link">成为Committer</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/ContributeGuide.html" class="nav-link">项目开发指南</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/format-changelist.html" class="nav-link">TsFile的更改列表</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/rpc-changelist.html" class="nav-link">RPC变更清单</a></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">ASF</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="http://www.apache.org/" class="nav-link external">
  基金会
  <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/licenses/" class="nav-link external">
  许可证
  <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/security/" class="nav-link external">
  安全
  <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/foundation/sponsorship.html" class="nav-link external">
  赞助
  <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/foundation/thanks.html" class="nav-link external">
  致谢
  <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/events/current-event" class="nav-link external">
  活动
  <!----></a></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">语言</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/UserGuide/V0.9.x/7-Ecosystem Integration/4-Spark IoTDB.html" class="nav-link">English</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.9.x/7-Ecosystem Integration/4-Spark IoTDB.html" class="nav-link">简体中文</a></li></ul></div></div> <a href="https://github.com/apache/iotdb.git" target="_blank" rel="noopener noreferrer" class="repo-link">
    gitHub
    <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></nav></div></header> <div class="sidebar-mask"></div> <aside class="sidebar"><nav class="nav-links"><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">文档</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/zh/UserGuide/Master/QuickStart/QuickStart.html" class="nav-link">In progress</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.12.x/QuickStart/QuickStart.html" class="nav-link">V0.12.x</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.11.x/Get Started/QuickStart.html" class="nav-link">V0.11.x</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.10.x/Get Started/QuickStart.html" class="nav-link">V0.10.x</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.9.x/0-Get Started/1-QuickStart.html" class="nav-link">V0.9.x</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.8.x/0-Get Started/1-QuickStart.html" class="nav-link">V0.8.x</a></li></ul></div></div><div class="nav-item"><a href="/zh/SystemDesign/Architecture/Architecture.html" class="nav-link">系统设计</a></div><div class="nav-item"><a href="/zh/Download/" class="nav-link">下载</a></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">社区</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="https://cwiki.apache.org/confluence/display/iotdb" class="nav-link external">
  Wiki
  <!----></a></li><li class="dropdown-item"><!----> <a href="/zh/Community/Community-Project Committers.html" class="nav-link">开发人员</a></li><li class="dropdown-item"><!----> <a href="/zh/Community/Community-Powered By.html" class="nav-link">技术支持</a></li><li class="dropdown-item"><!----> <a href="/Community/Materials.html" class="nav-link">活动与报告</a></li><li class="dropdown-item"><!----> <a href="/zh/Community/Feedback.html" class="nav-link">交流与反馈</a></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">开发</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/zh/Development/VoteRelease.html" class="nav-link">如何投票</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/HowToCommit.html" class="nav-link">如何提交代码</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/Committer.html" class="nav-link">成为Committer</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/ContributeGuide.html" class="nav-link">项目开发指南</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/format-changelist.html" class="nav-link">TsFile的更改列表</a></li><li class="dropdown-item"><!----> <a href="/zh/Development/rpc-changelist.html" class="nav-link">RPC变更清单</a></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">ASF</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="http://www.apache.org/" class="nav-link external">
  基金会
  <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/licenses/" class="nav-link external">
  许可证
  <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/security/" class="nav-link external">
  安全
  <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/foundation/sponsorship.html" class="nav-link external">
  赞助
  <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/foundation/thanks.html" class="nav-link external">
  致谢
  <!----></a></li><li class="dropdown-item"><!----> <a href="http://www.apache.org/events/current-event" class="nav-link external">
  活动
  <!----></a></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">语言</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/UserGuide/V0.9.x/7-Ecosystem Integration/4-Spark IoTDB.html" class="nav-link">English</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/V0.9.x/7-Ecosystem Integration/4-Spark IoTDB.html" class="nav-link">简体中文</a></li></ul></div></div> <a href="https://github.com/apache/iotdb.git" target="_blank" rel="noopener noreferrer" class="repo-link">
    gitHub
    <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></nav>  <ul class="sidebar-links"><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>IoTDB用户手册 (V0.9.x)</span> <!----></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>0-开始</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>1-概览</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>2-概念</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>3-服务器端</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>4-客户端</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>5-操作指南</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>6-系统工具</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading open"><span>7-生态集成</span> <span class="arrow down"></span></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/zh/UserGuide/V0.9.x/7-Ecosystem Integration/1-Grafana.html" class="sidebar-link">Grafana</a></li><li><a href="/zh/UserGuide/V0.9.x/7-Ecosystem Integration/2-MapReduce TsFile.html" class="sidebar-link">MapReduce TsFile</a></li><li><a href="/zh/UserGuide/V0.9.x/7-Ecosystem Integration/3-Spark TsFile.html" class="sidebar-link">Spark TsFile</a></li><li><a href="/zh/UserGuide/V0.9.x/7-Ecosystem Integration/4-Spark IoTDB.html" class="active sidebar-link">Spark IoTDB</a></li><li><a href="/zh/UserGuide/V0.9.x/7-Ecosystem Integration/5-Hive TsFile.html" class="sidebar-link">Hive TsFile</a></li></ul></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>8-系统设计</span> <span class="arrow right"></span></p> <!----></section></li></ul> </aside> <main class="page"> <div class="content content__default"><h1 id="spark-iotdb连接"><a href="#spark-iotdb连接" class="header-anchor">#</a> Spark IoTDB连接</h1> <h2 id="版本"><a href="#版本" class="header-anchor">#</a> 版本</h2> <p>Spark和Java所需的版本如下：</p> <table><thead><tr><th>Spark Version</th> <th>Scala Version</th> <th>Java Version</th> <th>TsFile</th></tr></thead> <tbody><tr><td><code>2.4.3</code></td> <td><code>2.11</code></td> <td><code>1.8</code></td> <td><code>0.9.3</code></td></tr></tbody></table> <h2 id="安装"><a href="#安装" class="header-anchor">#</a> 安装</h2> <p>mvn clean scala：compile编译安装</p> <h1 id="_1-maven依赖"><a href="#_1-maven依赖" class="header-anchor">#</a> 1. Maven依赖</h1> <div class="language- line-numbers-mode"><pre class="language-text"><code>    &lt;dependency&gt;
      &lt;groupId&gt;org.apache.iotdb&lt;/groupId&gt;
      &lt;artifactId&gt;spark-iotdb-connector&lt;/artifactId&gt;
      &lt;version&gt;0.9.3&lt;/version&gt;
    &lt;/dependency&gt;
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br></div></div><h1 id="_2-spark-shell用户指南"><a href="#_2-spark-shell用户指南" class="header-anchor">#</a> 2. Spark-shell用户指南</h1> <div class="language- line-numbers-mode"><pre class="language-text"><code>spark-shell --jars spark-iotdb-connector-0.9.3.jar,iotdb-jdbc-0.9.3-jar-with-dependencies.jar

import org.apache.iotdb.spark.db._

val df = spark.read.format(&quot;org.apache.iotdb.spark.db&quot;).option(&quot;url&quot;,&quot;jdbc:iotdb://127.0.0.1:6667/&quot;).option(&quot;sql&quot;,&quot;select * from root&quot;).load

df.printSchema()

df.show()
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br></div></div><h3 id="如果要对rdd进行分区-可以执行以下操作"><a href="#如果要对rdd进行分区-可以执行以下操作" class="header-anchor">#</a> 如果要对rdd进行分区，可以执行以下操作</h3> <div class="language- line-numbers-mode"><pre class="language-text"><code>spark-shell --jars spark-iotdb-connector-0.9.3.jar,iotdb-jdbc-0.9.3-jar-with-dependencies.jar

import org.apache.iotdb.spark.db._

val df = spark.read.format(&quot;org.apache.iotdb.spark.db&quot;).option(&quot;url&quot;,&quot;jdbc:iotdb://127.0.0.1:6667/&quot;).option(&quot;sql&quot;,&quot;select * from root&quot;).
                        option(&quot;lowerBound&quot;, [lower bound of time that you want query(include)]).option(&quot;upperBound&quot;, [upper bound of time that you want query(include)]).
                        option(&quot;numPartition&quot;, [the partition number you want]).load

df.printSchema()

df.show()
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br></div></div><h1 id="_3-模式推断"><a href="#_3-模式推断" class="header-anchor">#</a> 3. 模式推断</h1> <p>以以下TsFile结构为例：TsFile模式中有三个度量：状态，温度和硬件。 这三种测量的基本信息如下：</p> <center><table style="text-align:center;"><tr><th colspan="2">Name</th><th colspan="2">Type</th><th colspan="2">Encode</th></tr> <tr><td colspan="2">status</td><td colspan="2">Boolean</td><td colspan="2">PLAIN</td></tr> <tr><td colspan="2">temperature</td><td colspan="2">Float</td><td colspan="2">RLE</td></tr> <tr><td colspan="2">hardware</td><td colspan="2">Text</td><td colspan="2">PLAIN</td></tr></table></center> <p>TsFile中的现有数据如下：</p> <center><table style="text-align:center;"><tr><th colspan="4">device:root.ln.wf01.wt01</th><th colspan="4">device:root.ln.wf02.wt02</th></tr> <tr><th colspan="2">status</th><th colspan="2">temperature</th><th colspan="2">hardware</th><th colspan="2">status</th></tr> <tr><th>time</th><th>value</th><th>time</th><th>value</th><th>time</th><th>value</th><th>time</th><th>value</th></tr> <tr><td>1</td><td>True</td><td>1</td><td>2.2</td><td>2</td><td>&quot;aaa&quot;</td><td>1</td><td>True</td></tr> <tr><td>3</td><td>True</td><td>2</td><td>2.2</td><td>4</td><td>&quot;bbb&quot;</td><td>2</td><td>False</td></tr> <tr><td>5</td><td> False </td><td>3</td><td>2.1</td><td>6</td><td>&quot;ccc&quot;</td><td>4</td><td>True</td></tr></table></center>
宽（默认）表形式如下：
<table><thead><tr><th>time</th> <th>root.ln.wf02.wt02.temperature</th> <th>root.ln.wf02.wt02.status</th> <th>root.ln.wf02.wt02.hardware</th> <th>root.ln.wf01.wt01.temperature</th> <th>root.ln.wf01.wt01.status</th> <th>root.ln.wf01.wt01.hardware</th></tr></thead> <tbody><tr><td>1</td> <td>null</td> <td>true</td> <td>null</td> <td>2.2</td> <td>true</td> <td>null</td></tr> <tr><td>2</td> <td>null</td> <td>false</td> <td>aaa</td> <td>2.2</td> <td>null</td> <td>null</td></tr> <tr><td>3</td> <td>null</td> <td>null</td> <td>null</td> <td>2.1</td> <td>true</td> <td>null</td></tr> <tr><td>4</td> <td>null</td> <td>true</td> <td>bbb</td> <td>null</td> <td>null</td> <td>null</td></tr> <tr><td>5</td> <td>null</td> <td>null</td> <td>null</td> <td>null</td> <td>false</td> <td>null</td></tr> <tr><td>6</td> <td>null</td> <td>null</td> <td>ccc</td> <td>null</td> <td>null</td> <td>null</td></tr></tbody></table> <p>您还可以使用窄表形式，如下所示：（您可以参阅第4部分，了解如何使用窄表形式）</p> <table><thead><tr><th>time</th> <th>device_name</th> <th>status</th> <th>hardware</th> <th>temperature</th></tr></thead> <tbody><tr><td>1</td> <td>root.ln.wf02.wt01</td> <td>true</td> <td>null</td> <td>2.2</td></tr> <tr><td>1</td> <td>root.ln.wf02.wt02</td> <td>true</td> <td>null</td> <td>null</td></tr> <tr><td>2</td> <td>root.ln.wf02.wt01</td> <td>null</td> <td>null</td> <td>2.2</td></tr> <tr><td>2</td> <td>root.ln.wf02.wt02</td> <td>false</td> <td>aaa</td> <td>null</td></tr> <tr><td>3</td> <td>root.ln.wf02.wt01</td> <td>true</td> <td>null</td> <td>2.1</td></tr> <tr><td>4</td> <td>root.ln.wf02.wt02</td> <td>true</td> <td>bbb</td> <td>null</td></tr> <tr><td>5</td> <td>root.ln.wf02.wt01</td> <td>false</td> <td>null</td> <td>null</td></tr> <tr><td>6</td> <td>root.ln.wf02.wt02</td> <td>null</td> <td>ccc</td> <td>null</td></tr></tbody></table> <h1 id="_4-在宽和窄之间转换"><a href="#_4-在宽和窄之间转换" class="header-anchor">#</a> 4. 在宽和窄之间转换</h1> <h2 id="从宽到窄"><a href="#从宽到窄" class="header-anchor">#</a> 从宽到窄</h2> <div class="language- line-numbers-mode"><pre class="language-text"><code>import org.apache.iotdb.spark.db._

val wide_df = spark.read.format(&quot;org.apache.iotdb.spark.db&quot;).option(&quot;url&quot;, &quot;jdbc:iotdb://127.0.0.1:6667/&quot;).option(&quot;sql&quot;, &quot;select * from root where time &lt; 1100 and time &gt; 1000&quot;).load
val narrow_df = Transformer.toNarrowForm(spark, wide_df)
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br></div></div><h2 id="从窄到宽"><a href="#从窄到宽" class="header-anchor">#</a> 从窄到宽</h2> <div class="language- line-numbers-mode"><pre class="language-text"><code>import org.apache.iotdb.spark.db._

val wide_df = Transformer.toWideForm(spark, narrow_df)
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br></div></div><h1 id="_5-java用户指南"><a href="#_5-java用户指南" class="header-anchor">#</a> 5. Java用户指南</h1> <div class="language- line-numbers-mode"><pre class="language-text"><code>import org.apache.spark.sql.Dataset;
import org.apache.spark.sql.Row;
import org.apache.spark.sql.SparkSession;
import org.apache.iotdb.spark.db.*

public class Example {

  public static void main(String[] args) {
    SparkSession spark = SparkSession
        .builder()
        .appName(&quot;Build a DataFrame from Scratch&quot;)
        .master(&quot;local[*]&quot;)
        .getOrCreate();

    Dataset&lt;Row&gt; df = spark.read().format(&quot;org.apache.iotdb.spark.db&quot;)
        .option(&quot;url&quot;,&quot;jdbc:iotdb://127.0.0.1:6667/&quot;)
        .option(&quot;sql&quot;,&quot;select * from root&quot;).load();

    df.printSchema();

    df.show();
    
    Dataset&lt;Row&gt; narrowTable = Transformer.toNarrowForm(spark, df)
    narrowTable.show()
  }
}
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br><span class="line-number">21</span><br><span class="line-number">22</span><br><span class="line-number">23</span><br><span class="line-number">24</span><br><span class="line-number">25</span><br><span class="line-number">26</span><br></div></div></div> <div class="page-nav"><p class="inner"><span class="prev">
        ←
        <a href="/zh/UserGuide/V0.9.x/7-Ecosystem Integration/3-Spark TsFile.html" class="prev">
          Spark TsFile
        </a></span> <span class="next"><a href="/zh/UserGuide/V0.9.x/7-Ecosystem Integration/5-Hive TsFile.html">
          Hive TsFile
        </a>
        →
      </span></p></div> <p style="text-align: center;">Copyright © 2021 The Apache Software Foundation.<br>
     Apache and the Apache feather logo are trademarks of The Apache Software Foundation</p> <p style="text-align: center; margin-top: 10px; color: #444">
    Contact us: Join QQ Group 659990460 | Add friend <i>tietouqiao</i> and be invited to Wechat Group<br>
    see <a href="https://github.com/apache/iotdb/issues/1995">Join the community</a> for more</p></main></div><div class="global-ui"></div></div>
    <script src="/assets/js/app.13a2c569.js" defer></script><script src="/assets/js/3.7fccac46.js" defer></script><script src="/assets/js/637.fac6e239.js" defer></script>
  </body>
</html>