<!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.cd07c2fa.js" as="script"><link rel="preload" href="/assets/js/3.2a42f5e4.js" as="script"><link rel="preload" href="/assets/js/641.8e0801d8.js" as="script"><link rel="prefetch" href="/assets/js/10.61872ae5.js"><link rel="prefetch" href="/assets/js/100.47b29810.js"><link rel="prefetch" href="/assets/js/101.be3f8e41.js"><link rel="prefetch" href="/assets/js/102.ab8764b7.js"><link rel="prefetch" href="/assets/js/103.4c142690.js"><link rel="prefetch" href="/assets/js/104.6042a8b3.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/107.5232a7c3.js"><link rel="prefetch" href="/assets/js/108.ccb521e0.js"><link rel="prefetch" href="/assets/js/109.c6797225.js"><link rel="prefetch" href="/assets/js/11.a080efae.js"><link rel="prefetch" href="/assets/js/110.2c0a21ac.js"><link rel="prefetch" href="/assets/js/111.64f69be0.js"><link rel="prefetch" href="/assets/js/112.3517c2ff.js"><link rel="prefetch" href="/assets/js/113.4b4bb4be.js"><link rel="prefetch" href="/assets/js/114.36c2b5e4.js"><link rel="prefetch" href="/assets/js/115.9447789e.js"><link rel="prefetch" href="/assets/js/116.870509a9.js"><link rel="prefetch" href="/assets/js/117.f1572c4d.js"><link rel="prefetch" href="/assets/js/118.1b482479.js"><link rel="prefetch" href="/assets/js/119.994db15b.js"><link rel="prefetch" href="/assets/js/12.4c48405a.js"><link rel="prefetch" href="/assets/js/120.b39ca53e.js"><link rel="prefetch" href="/assets/js/121.ac3af24a.js"><link rel="prefetch" href="/assets/js/122.d17d7d81.js"><link rel="prefetch" href="/assets/js/123.4aa29866.js"><link rel="prefetch" href="/assets/js/124.ee85ddde.js"><link rel="prefetch" href="/assets/js/125.118d7f8b.js"><link rel="prefetch" href="/assets/js/126.9c2f8dc7.js"><link rel="prefetch" href="/assets/js/127.5fa0f28c.js"><link rel="prefetch" href="/assets/js/128.bf1e94f3.js"><link rel="prefetch" href="/assets/js/129.4479fadb.js"><link rel="prefetch" href="/assets/js/13.16ded47d.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.df382fa4.js"><link rel="prefetch" href="/assets/js/133.2605b87b.js"><link rel="prefetch" href="/assets/js/134.7f44a201.js"><link rel="prefetch" href="/assets/js/135.f867beb1.js"><link rel="prefetch" href="/assets/js/136.32dc30f5.js"><link rel="prefetch" href="/assets/js/137.a0b9469d.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/14.81c4b95d.js"><link rel="prefetch" href="/assets/js/140.1c3b9c8e.js"><link rel="prefetch" href="/assets/js/141.ced0e8b4.js"><link rel="prefetch" href="/assets/js/142.0f0eab1f.js"><link rel="prefetch" href="/assets/js/143.b1cbf905.js"><link rel="prefetch" href="/assets/js/144.c8f1a948.js"><link rel="prefetch" href="/assets/js/145.20508b5b.js"><link rel="prefetch" href="/assets/js/146.d6f1ef22.js"><link rel="prefetch" href="/assets/js/147.d3ae33f7.js"><link rel="prefetch" href="/assets/js/148.fbd3c4b0.js"><link rel="prefetch" href="/assets/js/149.68309cce.js"><link rel="prefetch" href="/assets/js/15.bf1d2930.js"><link rel="prefetch" href="/assets/js/150.9bf1f73d.js"><link rel="prefetch" href="/assets/js/151.c102d923.js"><link rel="prefetch" href="/assets/js/152.e1bd669b.js"><link rel="prefetch" href="/assets/js/153.74bb0871.js"><link rel="prefetch" href="/assets/js/154.5930e226.js"><link rel="prefetch" href="/assets/js/155.d1c42f9d.js"><link rel="prefetch" href="/assets/js/156.38141ca2.js"><link rel="prefetch" href="/assets/js/157.d0fa5d7e.js"><link rel="prefetch" href="/assets/js/158.b424c315.js"><link rel="prefetch" href="/assets/js/159.5dcc300f.js"><link rel="prefetch" href="/assets/js/16.d2fb5036.js"><link rel="prefetch" href="/assets/js/160.0163ee71.js"><link rel="prefetch" href="/assets/js/161.ea35ffd3.js"><link rel="prefetch" href="/assets/js/162.ffc62b9b.js"><link rel="prefetch" href="/assets/js/163.63e5a86d.js"><link rel="prefetch" href="/assets/js/164.fc84bb91.js"><link rel="prefetch" href="/assets/js/165.6c824b8c.js"><link rel="prefetch" href="/assets/js/166.397b3e8c.js"><link rel="prefetch" href="/assets/js/167.05e14a7b.js"><link rel="prefetch" href="/assets/js/168.bfae89ef.js"><link rel="prefetch" href="/assets/js/169.2cbaff61.js"><link rel="prefetch" href="/assets/js/17.efe29df6.js"><link rel="prefetch" href="/assets/js/170.f26474b0.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.f8eebecd.js"><link rel="prefetch" href="/assets/js/175.6a08a28f.js"><link rel="prefetch" href="/assets/js/176.f83d84c6.js"><link rel="prefetch" href="/assets/js/177.ace4f921.js"><link rel="prefetch" href="/assets/js/178.044fc356.js"><link rel="prefetch" href="/assets/js/179.04f818ee.js"><link rel="prefetch" href="/assets/js/18.ec2f64fe.js"><link rel="prefetch" href="/assets/js/180.50b6e9ae.js"><link rel="prefetch" href="/assets/js/181.38262468.js"><link rel="prefetch" href="/assets/js/182.6e5cc145.js"><link rel="prefetch" href="/assets/js/183.b90f3741.js"><link rel="prefetch" href="/assets/js/184.d8c296fd.js"><link rel="prefetch" href="/assets/js/185.f76280e7.js"><link rel="prefetch" href="/assets/js/186.0c977b03.js"><link rel="prefetch" href="/assets/js/187.26834b77.js"><link rel="prefetch" href="/assets/js/188.914d4380.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/190.4531db7b.js"><link rel="prefetch" href="/assets/js/191.487b3857.js"><link rel="prefetch" href="/assets/js/192.1f3b6ca8.js"><link rel="prefetch" href="/assets/js/193.a4ebe434.js"><link rel="prefetch" href="/assets/js/194.80d52b93.js"><link rel="prefetch" href="/assets/js/195.3403576e.js"><link rel="prefetch" href="/assets/js/196.05c80d9a.js"><link rel="prefetch" href="/assets/js/197.64dbc6f3.js"><link rel="prefetch" href="/assets/js/198.7a43449a.js"><link rel="prefetch" href="/assets/js/199.4667308c.js"><link rel="prefetch" href="/assets/js/20.335cca54.js"><link rel="prefetch" href="/assets/js/200.6359ec70.js"><link rel="prefetch" href="/assets/js/201.7b157ca9.js"><link rel="prefetch" href="/assets/js/202.97011f10.js"><link rel="prefetch" href="/assets/js/203.e8e6e386.js"><link rel="prefetch" href="/assets/js/204.f9f53b05.js"><link rel="prefetch" href="/assets/js/205.a14130fa.js"><link rel="prefetch" href="/assets/js/206.571a8dbc.js"><link rel="prefetch" href="/assets/js/207.cd154c33.js"><link rel="prefetch" href="/assets/js/208.ec1e91a0.js"><link rel="prefetch" href="/assets/js/209.894ab478.js"><link rel="prefetch" href="/assets/js/21.8c3060b4.js"><link rel="prefetch" href="/assets/js/210.b47e7f1b.js"><link rel="prefetch" href="/assets/js/211.1182daf0.js"><link rel="prefetch" href="/assets/js/212.88cfd73c.js"><link rel="prefetch" href="/assets/js/213.b6784836.js"><link rel="prefetch" href="/assets/js/214.0a76e43e.js"><link rel="prefetch" href="/assets/js/215.31c34e00.js"><link rel="prefetch" href="/assets/js/216.c31c58b1.js"><link rel="prefetch" href="/assets/js/217.e56bd014.js"><link rel="prefetch" href="/assets/js/218.6a193a9b.js"><link rel="prefetch" href="/assets/js/219.c1702bf7.js"><link rel="prefetch" href="/assets/js/22.d30695a0.js"><link rel="prefetch" href="/assets/js/220.e4c8344e.js"><link rel="prefetch" href="/assets/js/221.6c4ef709.js"><link rel="prefetch" href="/assets/js/222.3e573e59.js"><link rel="prefetch" href="/assets/js/223.28393c51.js"><link rel="prefetch" href="/assets/js/224.8872f291.js"><link rel="prefetch" href="/assets/js/225.3d5bcb45.js"><link rel="prefetch" href="/assets/js/226.4b68a654.js"><link rel="prefetch" href="/assets/js/227.a0832c76.js"><link rel="prefetch" href="/assets/js/228.4834ee2a.js"><link rel="prefetch" href="/assets/js/229.0f86fa39.js"><link rel="prefetch" href="/assets/js/23.c21377c0.js"><link rel="prefetch" href="/assets/js/230.6dee403e.js"><link rel="prefetch" href="/assets/js/231.db4b00e9.js"><link rel="prefetch" href="/assets/js/232.46dde63d.js"><link rel="prefetch" href="/assets/js/233.3f928465.js"><link rel="prefetch" href="/assets/js/234.e451ab40.js"><link rel="prefetch" href="/assets/js/235.b83ef0bb.js"><link rel="prefetch" href="/assets/js/236.b647c8c6.js"><link rel="prefetch" href="/assets/js/237.7cbda94b.js"><link rel="prefetch" href="/assets/js/238.f4d80418.js"><link rel="prefetch" href="/assets/js/239.16e9e1fe.js"><link rel="prefetch" href="/assets/js/24.4a86b358.js"><link rel="prefetch" href="/assets/js/240.c85b394f.js"><link rel="prefetch" href="/assets/js/241.1f972f6c.js"><link rel="prefetch" href="/assets/js/242.90755a70.js"><link rel="prefetch" href="/assets/js/243.88b5d9c1.js"><link rel="prefetch" href="/assets/js/244.024e03e6.js"><link rel="prefetch" href="/assets/js/245.df7f3f34.js"><link rel="prefetch" href="/assets/js/246.013095a6.js"><link rel="prefetch" href="/assets/js/247.d09b8d82.js"><link rel="prefetch" href="/assets/js/248.41e0e656.js"><link rel="prefetch" href="/assets/js/249.5fbc353a.js"><link rel="prefetch" href="/assets/js/25.f8281c6e.js"><link rel="prefetch" href="/assets/js/250.0d3aaf39.js"><link rel="prefetch" href="/assets/js/251.0ae7ee46.js"><link rel="prefetch" href="/assets/js/252.d7ea910f.js"><link rel="prefetch" href="/assets/js/253.eb1f2101.js"><link rel="prefetch" href="/assets/js/254.f1632866.js"><link rel="prefetch" href="/assets/js/255.e0cc85d5.js"><link rel="prefetch" href="/assets/js/256.fd4c8b20.js"><link rel="prefetch" href="/assets/js/257.c5d7228d.js"><link rel="prefetch" href="/assets/js/258.f4ff7bfb.js"><link rel="prefetch" href="/assets/js/259.4429563b.js"><link rel="prefetch" href="/assets/js/26.108ee393.js"><link rel="prefetch" href="/assets/js/260.7c2580dd.js"><link rel="prefetch" href="/assets/js/261.b2b00e2e.js"><link rel="prefetch" href="/assets/js/262.ab88ace1.js"><link rel="prefetch" href="/assets/js/263.5f56c054.js"><link rel="prefetch" href="/assets/js/264.2b3be37f.js"><link rel="prefetch" href="/assets/js/265.5c5138c3.js"><link rel="prefetch" href="/assets/js/266.19b07017.js"><link rel="prefetch" href="/assets/js/267.c04bae9d.js"><link rel="prefetch" href="/assets/js/268.1c185126.js"><link rel="prefetch" href="/assets/js/269.9b00598c.js"><link rel="prefetch" href="/assets/js/27.ce2cad14.js"><link rel="prefetch" href="/assets/js/270.79253900.js"><link rel="prefetch" href="/assets/js/271.b2afe860.js"><link rel="prefetch" href="/assets/js/272.db8943f8.js"><link rel="prefetch" href="/assets/js/273.7e70e5b7.js"><link rel="prefetch" href="/assets/js/274.1b5f0c99.js"><link rel="prefetch" href="/assets/js/275.36a23724.js"><link rel="prefetch" href="/assets/js/276.9d87c99a.js"><link rel="prefetch" href="/assets/js/277.73c7fb5f.js"><link rel="prefetch" href="/assets/js/278.72590c19.js"><link rel="prefetch" href="/assets/js/279.6bba344e.js"><link rel="prefetch" href="/assets/js/28.196d9118.js"><link rel="prefetch" href="/assets/js/280.532a4551.js"><link rel="prefetch" href="/assets/js/281.47678c07.js"><link rel="prefetch" href="/assets/js/282.3d676bf0.js"><link rel="prefetch" href="/assets/js/283.8f2b46c3.js"><link rel="prefetch" href="/assets/js/284.6af96cb2.js"><link rel="prefetch" href="/assets/js/285.0a94ea52.js"><link rel="prefetch" href="/assets/js/286.66b3b404.js"><link rel="prefetch" href="/assets/js/287.e8e44717.js"><link rel="prefetch" href="/assets/js/288.c4c894b9.js"><link rel="prefetch" href="/assets/js/289.368cc017.js"><link rel="prefetch" href="/assets/js/29.35566993.js"><link rel="prefetch" href="/assets/js/290.ad040397.js"><link rel="prefetch" href="/assets/js/291.38908283.js"><link rel="prefetch" href="/assets/js/292.9d78c2c3.js"><link rel="prefetch" href="/assets/js/293.276dabda.js"><link rel="prefetch" href="/assets/js/294.14a7328e.js"><link rel="prefetch" href="/assets/js/295.022ce890.js"><link rel="prefetch" href="/assets/js/296.82da5f05.js"><link rel="prefetch" href="/assets/js/297.713c3b6e.js"><link rel="prefetch" href="/assets/js/298.051c397a.js"><link rel="prefetch" href="/assets/js/299.8cb2261f.js"><link rel="prefetch" href="/assets/js/30.2a46f39a.js"><link rel="prefetch" href="/assets/js/300.1edad926.js"><link rel="prefetch" href="/assets/js/301.9e8d9afc.js"><link rel="prefetch" href="/assets/js/302.64b08bcb.js"><link rel="prefetch" href="/assets/js/303.5142e505.js"><link rel="prefetch" href="/assets/js/304.326eed21.js"><link rel="prefetch" href="/assets/js/305.0aa215ce.js"><link rel="prefetch" href="/assets/js/306.857aae36.js"><link rel="prefetch" href="/assets/js/307.2fbda374.js"><link rel="prefetch" href="/assets/js/308.eb2b9bc2.js"><link rel="prefetch" href="/assets/js/309.dd7656fb.js"><link rel="prefetch" href="/assets/js/31.fab44020.js"><link rel="prefetch" href="/assets/js/310.1c1e4a93.js"><link rel="prefetch" href="/assets/js/311.05dd6d98.js"><link rel="prefetch" href="/assets/js/312.479348b4.js"><link rel="prefetch" href="/assets/js/313.665e106f.js"><link rel="prefetch" href="/assets/js/314.36b48a81.js"><link rel="prefetch" href="/assets/js/315.f2e0ffc6.js"><link rel="prefetch" href="/assets/js/316.31b4508b.js"><link rel="prefetch" href="/assets/js/317.9d5d4b6d.js"><link rel="prefetch" href="/assets/js/318.3362bfb2.js"><link rel="prefetch" href="/assets/js/319.a94279d5.js"><link rel="prefetch" href="/assets/js/32.8f287f6a.js"><link rel="prefetch" href="/assets/js/320.575c962a.js"><link rel="prefetch" href="/assets/js/321.e3971e75.js"><link rel="prefetch" href="/assets/js/322.46a74f5d.js"><link rel="prefetch" href="/assets/js/323.0ffeaf3b.js"><link rel="prefetch" href="/assets/js/324.7b5b9e9b.js"><link rel="prefetch" href="/assets/js/325.90e02cd4.js"><link rel="prefetch" href="/assets/js/326.00105535.js"><link rel="prefetch" href="/assets/js/327.4f0759d6.js"><link rel="prefetch" href="/assets/js/328.e458a662.js"><link rel="prefetch" href="/assets/js/329.fcf02a87.js"><link rel="prefetch" href="/assets/js/33.5af74851.js"><link rel="prefetch" href="/assets/js/330.ee20bd02.js"><link rel="prefetch" href="/assets/js/331.2fa6fbda.js"><link rel="prefetch" href="/assets/js/332.7feb498b.js"><link rel="prefetch" href="/assets/js/333.385ba052.js"><link rel="prefetch" href="/assets/js/334.cced60ec.js"><link rel="prefetch" href="/assets/js/335.616cbee6.js"><link rel="prefetch" href="/assets/js/336.ca5b5572.js"><link rel="prefetch" href="/assets/js/337.0c8ef97c.js"><link rel="prefetch" href="/assets/js/338.8a9a7a9e.js"><link rel="prefetch" href="/assets/js/339.a1accaad.js"><link rel="prefetch" href="/assets/js/34.5dfe1291.js"><link rel="prefetch" href="/assets/js/340.2d3d2ae5.js"><link rel="prefetch" href="/assets/js/341.0669ee46.js"><link rel="prefetch" href="/assets/js/342.f04286cc.js"><link rel="prefetch" href="/assets/js/343.10f0d15c.js"><link rel="prefetch" href="/assets/js/344.fc30101e.js"><link rel="prefetch" href="/assets/js/345.db8c549d.js"><link rel="prefetch" href="/assets/js/346.4e5b736e.js"><link rel="prefetch" href="/assets/js/347.30887da4.js"><link rel="prefetch" href="/assets/js/348.e89eebf8.js"><link rel="prefetch" href="/assets/js/349.ced465b2.js"><link rel="prefetch" href="/assets/js/35.0a7b7db7.js"><link rel="prefetch" href="/assets/js/350.54d82811.js"><link rel="prefetch" href="/assets/js/351.22c50fcc.js"><link rel="prefetch" href="/assets/js/352.9d30e57b.js"><link rel="prefetch" href="/assets/js/353.967b32bd.js"><link rel="prefetch" href="/assets/js/354.12fe5a6a.js"><link rel="prefetch" href="/assets/js/355.25ee5cda.js"><link rel="prefetch" href="/assets/js/356.01e8a40d.js"><link rel="prefetch" href="/assets/js/357.f8ae50b2.js"><link rel="prefetch" href="/assets/js/358.6f44cb1e.js"><link rel="prefetch" href="/assets/js/359.d2a8e208.js"><link rel="prefetch" href="/assets/js/36.8a8c44ca.js"><link rel="prefetch" href="/assets/js/360.1520ffcf.js"><link rel="prefetch" href="/assets/js/361.7c7f3d7b.js"><link rel="prefetch" href="/assets/js/362.3a08870e.js"><link rel="prefetch" href="/assets/js/363.f3e25c62.js"><link rel="prefetch" href="/assets/js/364.32b3c5a8.js"><link rel="prefetch" href="/assets/js/365.aeb08354.js"><link rel="prefetch" href="/assets/js/366.72517ac0.js"><link rel="prefetch" href="/assets/js/367.18b3b8f7.js"><link rel="prefetch" href="/assets/js/368.ec2a91f3.js"><link rel="prefetch" href="/assets/js/369.d6de0392.js"><link rel="prefetch" href="/assets/js/37.7ed1a8d1.js"><link rel="prefetch" href="/assets/js/370.ebfed179.js"><link rel="prefetch" href="/assets/js/371.5616eccf.js"><link rel="prefetch" href="/assets/js/372.a03558dc.js"><link rel="prefetch" href="/assets/js/373.5d45c61b.js"><link rel="prefetch" href="/assets/js/374.39b69121.js"><link rel="prefetch" href="/assets/js/375.7d7c64d7.js"><link rel="prefetch" href="/assets/js/376.7881cfc3.js"><link rel="prefetch" href="/assets/js/377.af9de350.js"><link rel="prefetch" href="/assets/js/378.1a1e8821.js"><link rel="prefetch" href="/assets/js/379.116b3170.js"><link rel="prefetch" href="/assets/js/38.8d2f9b02.js"><link rel="prefetch" href="/assets/js/380.370a093f.js"><link rel="prefetch" href="/assets/js/381.f37830ca.js"><link rel="prefetch" href="/assets/js/382.ab0212ff.js"><link rel="prefetch" href="/assets/js/383.25f8d756.js"><link rel="prefetch" href="/assets/js/384.97136bbd.js"><link rel="prefetch" href="/assets/js/385.498a0b96.js"><link rel="prefetch" href="/assets/js/386.3b60e408.js"><link rel="prefetch" href="/assets/js/387.9ba695cb.js"><link rel="prefetch" href="/assets/js/388.04a18c82.js"><link rel="prefetch" href="/assets/js/389.9ad76e17.js"><link rel="prefetch" href="/assets/js/39.977e55a2.js"><link rel="prefetch" href="/assets/js/390.914db4ab.js"><link rel="prefetch" href="/assets/js/391.f95a2c3c.js"><link rel="prefetch" href="/assets/js/392.c6e77723.js"><link rel="prefetch" href="/assets/js/393.0b442456.js"><link rel="prefetch" href="/assets/js/394.376eb224.js"><link rel="prefetch" href="/assets/js/395.f90c5b4c.js"><link rel="prefetch" href="/assets/js/396.50d8d5c4.js"><link rel="prefetch" href="/assets/js/397.6184ad09.js"><link rel="prefetch" href="/assets/js/398.965e0e4c.js"><link rel="prefetch" href="/assets/js/399.79ebc172.js"><link rel="prefetch" href="/assets/js/4.91d854a1.js"><link rel="prefetch" href="/assets/js/40.6f6fb483.js"><link rel="prefetch" href="/assets/js/400.34747ce2.js"><link rel="prefetch" href="/assets/js/401.c658fdf1.js"><link rel="prefetch" href="/assets/js/402.3e9a16e5.js"><link rel="prefetch" href="/assets/js/403.ba8ea8ab.js"><link rel="prefetch" href="/assets/js/404.906ae695.js"><link rel="prefetch" href="/assets/js/405.a071166e.js"><link rel="prefetch" href="/assets/js/406.ff33839d.js"><link rel="prefetch" href="/assets/js/407.865547ac.js"><link rel="prefetch" href="/assets/js/408.b6ab44a1.js"><link rel="prefetch" href="/assets/js/409.7d5b623b.js"><link rel="prefetch" href="/assets/js/41.f1dd1831.js"><link rel="prefetch" href="/assets/js/410.ecfdb8f1.js"><link rel="prefetch" href="/assets/js/411.bd2dbd0e.js"><link rel="prefetch" href="/assets/js/412.c66dd7de.js"><link rel="prefetch" href="/assets/js/413.dae89178.js"><link rel="prefetch" href="/assets/js/414.a440ee72.js"><link rel="prefetch" href="/assets/js/415.cc0002eb.js"><link rel="prefetch" href="/assets/js/416.3858a741.js"><link rel="prefetch" href="/assets/js/417.2166d5e6.js"><link rel="prefetch" href="/assets/js/418.88a5c742.js"><link rel="prefetch" href="/assets/js/419.ec38cce5.js"><link rel="prefetch" href="/assets/js/42.6727d6a6.js"><link rel="prefetch" href="/assets/js/420.baa3fb6b.js"><link rel="prefetch" href="/assets/js/421.b47f6537.js"><link rel="prefetch" href="/assets/js/422.8682c776.js"><link rel="prefetch" href="/assets/js/423.7090348c.js"><link rel="prefetch" href="/assets/js/424.5a36d297.js"><link rel="prefetch" href="/assets/js/425.d69cc603.js"><link rel="prefetch" href="/assets/js/426.0650311e.js"><link rel="prefetch" href="/assets/js/427.e532cec9.js"><link rel="prefetch" href="/assets/js/428.d7e5abc5.js"><link rel="prefetch" href="/assets/js/429.15e50e04.js"><link rel="prefetch" href="/assets/js/43.6b1d84bc.js"><link rel="prefetch" href="/assets/js/430.8aef2b31.js"><link rel="prefetch" href="/assets/js/431.cd3c2525.js"><link rel="prefetch" href="/assets/js/432.9b56bf1b.js"><link rel="prefetch" href="/assets/js/433.82470875.js"><link rel="prefetch" href="/assets/js/434.175df5a2.js"><link rel="prefetch" href="/assets/js/435.ef84b041.js"><link rel="prefetch" href="/assets/js/436.275cc028.js"><link rel="prefetch" href="/assets/js/437.681033bd.js"><link rel="prefetch" href="/assets/js/438.8c26bd38.js"><link rel="prefetch" href="/assets/js/439.4326cfc7.js"><link rel="prefetch" href="/assets/js/44.7bf207c6.js"><link rel="prefetch" href="/assets/js/440.abad0c5e.js"><link rel="prefetch" href="/assets/js/441.cbda2cfa.js"><link rel="prefetch" href="/assets/js/442.e42f442c.js"><link rel="prefetch" href="/assets/js/443.1fe1d886.js"><link rel="prefetch" href="/assets/js/444.7c71aab4.js"><link rel="prefetch" href="/assets/js/445.291ae37c.js"><link rel="prefetch" href="/assets/js/446.6c9682e4.js"><link rel="prefetch" href="/assets/js/447.594935b8.js"><link rel="prefetch" href="/assets/js/448.dbb8091e.js"><link rel="prefetch" href="/assets/js/449.b217eb50.js"><link rel="prefetch" href="/assets/js/45.3161e71b.js"><link rel="prefetch" href="/assets/js/450.fa92501a.js"><link rel="prefetch" href="/assets/js/451.2d8b4eee.js"><link rel="prefetch" href="/assets/js/452.c98d7422.js"><link rel="prefetch" href="/assets/js/453.04694e2d.js"><link rel="prefetch" href="/assets/js/454.cec8a98b.js"><link rel="prefetch" href="/assets/js/455.579f855d.js"><link rel="prefetch" href="/assets/js/456.a7c30066.js"><link rel="prefetch" href="/assets/js/457.43ed31da.js"><link rel="prefetch" href="/assets/js/458.f794f0a1.js"><link rel="prefetch" href="/assets/js/459.68d942de.js"><link rel="prefetch" href="/assets/js/46.0681e191.js"><link rel="prefetch" href="/assets/js/460.83cbad4c.js"><link rel="prefetch" href="/assets/js/461.b9746da9.js"><link rel="prefetch" href="/assets/js/462.899c56a4.js"><link rel="prefetch" href="/assets/js/463.68dcef9a.js"><link rel="prefetch" href="/assets/js/464.6e2036cb.js"><link rel="prefetch" href="/assets/js/465.f8dcd141.js"><link rel="prefetch" href="/assets/js/466.f56b92ba.js"><link rel="prefetch" href="/assets/js/467.6cb0e836.js"><link rel="prefetch" href="/assets/js/468.54b36b5c.js"><link rel="prefetch" href="/assets/js/469.22584acc.js"><link rel="prefetch" href="/assets/js/47.ee804674.js"><link rel="prefetch" href="/assets/js/470.6b1341a6.js"><link rel="prefetch" href="/assets/js/471.f118f37c.js"><link rel="prefetch" href="/assets/js/472.c14c7cff.js"><link rel="prefetch" href="/assets/js/473.2eced5ff.js"><link rel="prefetch" href="/assets/js/474.e862dd2c.js"><link rel="prefetch" href="/assets/js/475.d20d7571.js"><link rel="prefetch" href="/assets/js/476.6d6eb5c1.js"><link rel="prefetch" href="/assets/js/477.462c863b.js"><link rel="prefetch" href="/assets/js/478.5966d63a.js"><link rel="prefetch" href="/assets/js/479.1d61143e.js"><link rel="prefetch" href="/assets/js/48.dd5f7791.js"><link rel="prefetch" href="/assets/js/480.5c7d31af.js"><link rel="prefetch" href="/assets/js/481.339bb6ba.js"><link rel="prefetch" href="/assets/js/482.6a49b82c.js"><link rel="prefetch" href="/assets/js/483.cafa61f9.js"><link rel="prefetch" href="/assets/js/484.7a0c6929.js"><link rel="prefetch" href="/assets/js/485.2738a461.js"><link rel="prefetch" href="/assets/js/486.d1d63c62.js"><link rel="prefetch" href="/assets/js/487.4fa0483e.js"><link rel="prefetch" href="/assets/js/488.f999466f.js"><link rel="prefetch" href="/assets/js/489.74a36cb0.js"><link rel="prefetch" href="/assets/js/49.a22d6593.js"><link rel="prefetch" href="/assets/js/490.99a914b7.js"><link rel="prefetch" href="/assets/js/491.ccc50bb1.js"><link rel="prefetch" href="/assets/js/492.d8b7440e.js"><link rel="prefetch" href="/assets/js/493.71668939.js"><link rel="prefetch" href="/assets/js/494.7a34704e.js"><link rel="prefetch" href="/assets/js/495.aff82e82.js"><link rel="prefetch" href="/assets/js/496.0a14cd27.js"><link rel="prefetch" href="/assets/js/497.f5238133.js"><link rel="prefetch" href="/assets/js/498.3af5de99.js"><link rel="prefetch" href="/assets/js/499.6b1c93c2.js"><link rel="prefetch" href="/assets/js/5.5a730a22.js"><link rel="prefetch" href="/assets/js/50.f860099b.js"><link rel="prefetch" href="/assets/js/500.7473b06d.js"><link rel="prefetch" href="/assets/js/501.c4bccddf.js"><link rel="prefetch" href="/assets/js/502.5b8c3f06.js"><link rel="prefetch" href="/assets/js/503.b8f7bf0d.js"><link rel="prefetch" href="/assets/js/504.696bf6d4.js"><link rel="prefetch" href="/assets/js/505.5088c7bd.js"><link rel="prefetch" href="/assets/js/506.16a8ac89.js"><link rel="prefetch" href="/assets/js/507.b5c982b2.js"><link rel="prefetch" href="/assets/js/508.b6c5d31f.js"><link rel="prefetch" href="/assets/js/509.2a5e0126.js"><link rel="prefetch" href="/assets/js/51.e25bd41b.js"><link rel="prefetch" href="/assets/js/510.1b65a001.js"><link rel="prefetch" href="/assets/js/511.5044385e.js"><link rel="prefetch" href="/assets/js/512.3c3fdeed.js"><link rel="prefetch" href="/assets/js/513.f17f3f85.js"><link rel="prefetch" href="/assets/js/514.e59ac7a8.js"><link rel="prefetch" href="/assets/js/515.29ec0271.js"><link rel="prefetch" href="/assets/js/516.560e42ba.js"><link rel="prefetch" href="/assets/js/517.538a1d17.js"><link rel="prefetch" href="/assets/js/518.056afb54.js"><link rel="prefetch" href="/assets/js/519.553a3c8e.js"><link rel="prefetch" href="/assets/js/52.b3ba6c43.js"><link rel="prefetch" href="/assets/js/520.cd11b0f8.js"><link rel="prefetch" href="/assets/js/521.255c38b2.js"><link rel="prefetch" href="/assets/js/522.dbe96b70.js"><link rel="prefetch" href="/assets/js/523.8e5b5e18.js"><link rel="prefetch" href="/assets/js/524.861f5e2c.js"><link rel="prefetch" href="/assets/js/525.7a628e20.js"><link rel="prefetch" href="/assets/js/526.0a240bb1.js"><link rel="prefetch" href="/assets/js/527.bc44252a.js"><link rel="prefetch" href="/assets/js/528.51a7cb30.js"><link rel="prefetch" href="/assets/js/529.e6762c93.js"><link rel="prefetch" href="/assets/js/53.a994810f.js"><link rel="prefetch" href="/assets/js/530.12121596.js"><link rel="prefetch" href="/assets/js/531.732ca969.js"><link rel="prefetch" href="/assets/js/532.c383afe0.js"><link rel="prefetch" href="/assets/js/533.27009326.js"><link rel="prefetch" href="/assets/js/534.8fd97962.js"><link rel="prefetch" href="/assets/js/535.c49833b4.js"><link rel="prefetch" href="/assets/js/536.34b112ad.js"><link rel="prefetch" href="/assets/js/537.a418aaf5.js"><link rel="prefetch" href="/assets/js/538.d1e977c1.js"><link rel="prefetch" href="/assets/js/539.3585b5c1.js"><link rel="prefetch" href="/assets/js/54.1ec48dc5.js"><link rel="prefetch" href="/assets/js/540.80fc4611.js"><link rel="prefetch" href="/assets/js/541.38caa7c0.js"><link rel="prefetch" href="/assets/js/542.a82d8253.js"><link rel="prefetch" href="/assets/js/543.8f099428.js"><link rel="prefetch" href="/assets/js/544.41ab9212.js"><link rel="prefetch" href="/assets/js/545.345ae885.js"><link rel="prefetch" href="/assets/js/546.5433479f.js"><link rel="prefetch" href="/assets/js/547.1c1c2f1f.js"><link rel="prefetch" href="/assets/js/548.48a49205.js"><link rel="prefetch" href="/assets/js/549.c555576e.js"><link rel="prefetch" href="/assets/js/55.ba5908aa.js"><link rel="prefetch" href="/assets/js/550.48fa63e2.js"><link rel="prefetch" href="/assets/js/551.95fc12ad.js"><link rel="prefetch" href="/assets/js/552.5f0a8a1a.js"><link rel="prefetch" href="/assets/js/553.ecc73e37.js"><link rel="prefetch" href="/assets/js/554.17b88955.js"><link rel="prefetch" href="/assets/js/555.04d2a121.js"><link rel="prefetch" href="/assets/js/556.546c8322.js"><link rel="prefetch" href="/assets/js/557.84464789.js"><link rel="prefetch" href="/assets/js/558.99c701bf.js"><link rel="prefetch" href="/assets/js/559.4b6e99c0.js"><link rel="prefetch" href="/assets/js/56.fcf66dfb.js"><link rel="prefetch" href="/assets/js/560.cf769a23.js"><link rel="prefetch" href="/assets/js/561.7cf13ba6.js"><link rel="prefetch" href="/assets/js/562.88f1ab27.js"><link rel="prefetch" href="/assets/js/563.f5f8aaf4.js"><link rel="prefetch" href="/assets/js/564.894fc9ba.js"><link rel="prefetch" href="/assets/js/565.749cb379.js"><link rel="prefetch" href="/assets/js/566.4d0c2085.js"><link rel="prefetch" href="/assets/js/567.9337af2a.js"><link rel="prefetch" href="/assets/js/568.067e7dd1.js"><link rel="prefetch" href="/assets/js/569.cf6824da.js"><link rel="prefetch" href="/assets/js/57.47a3d63c.js"><link rel="prefetch" href="/assets/js/570.4d8757e7.js"><link rel="prefetch" href="/assets/js/571.6ed8716a.js"><link rel="prefetch" href="/assets/js/572.1a0bd6f4.js"><link rel="prefetch" href="/assets/js/573.8a19ef48.js"><link rel="prefetch" href="/assets/js/574.014c619f.js"><link rel="prefetch" href="/assets/js/575.ca1221fb.js"><link rel="prefetch" href="/assets/js/576.e51950a4.js"><link rel="prefetch" href="/assets/js/577.577165ae.js"><link rel="prefetch" href="/assets/js/578.6ebef582.js"><link rel="prefetch" href="/assets/js/579.f41f98b0.js"><link rel="prefetch" href="/assets/js/58.e3e74c9a.js"><link rel="prefetch" href="/assets/js/580.1271db2e.js"><link rel="prefetch" href="/assets/js/581.efeef161.js"><link rel="prefetch" href="/assets/js/582.ca878c09.js"><link rel="prefetch" href="/assets/js/583.c41b6a33.js"><link rel="prefetch" href="/assets/js/584.59806fbd.js"><link rel="prefetch" href="/assets/js/585.05a422e8.js"><link rel="prefetch" href="/assets/js/586.d17af92c.js"><link rel="prefetch" href="/assets/js/587.038d345c.js"><link rel="prefetch" href="/assets/js/588.697644f8.js"><link rel="prefetch" href="/assets/js/589.6f03bb77.js"><link rel="prefetch" href="/assets/js/59.bc479ead.js"><link rel="prefetch" href="/assets/js/590.65ae38e8.js"><link rel="prefetch" href="/assets/js/591.13d806d8.js"><link rel="prefetch" href="/assets/js/592.4a380fde.js"><link rel="prefetch" href="/assets/js/593.95706dec.js"><link rel="prefetch" href="/assets/js/594.487a07ec.js"><link rel="prefetch" href="/assets/js/595.b09ebed5.js"><link rel="prefetch" href="/assets/js/596.9f3d4c37.js"><link rel="prefetch" href="/assets/js/597.24a28c60.js"><link rel="prefetch" href="/assets/js/598.dea2f060.js"><link rel="prefetch" href="/assets/js/599.881f3080.js"><link rel="prefetch" href="/assets/js/6.d05ff7d1.js"><link rel="prefetch" href="/assets/js/60.538f7a8f.js"><link rel="prefetch" href="/assets/js/600.a1df3d21.js"><link rel="prefetch" href="/assets/js/601.8f86ab54.js"><link rel="prefetch" href="/assets/js/602.cbb98cef.js"><link rel="prefetch" href="/assets/js/603.f69ad197.js"><link rel="prefetch" href="/assets/js/604.ed947213.js"><link rel="prefetch" href="/assets/js/605.5d4408fa.js"><link rel="prefetch" href="/assets/js/606.1303dab1.js"><link rel="prefetch" href="/assets/js/607.651c81d7.js"><link rel="prefetch" href="/assets/js/608.5f805112.js"><link rel="prefetch" href="/assets/js/609.c9a567f6.js"><link rel="prefetch" href="/assets/js/61.cc65190a.js"><link rel="prefetch" href="/assets/js/610.b2a8426e.js"><link rel="prefetch" href="/assets/js/611.722ff656.js"><link rel="prefetch" href="/assets/js/612.d876f095.js"><link rel="prefetch" href="/assets/js/613.a353bf79.js"><link rel="prefetch" href="/assets/js/614.fa0b03dc.js"><link rel="prefetch" href="/assets/js/615.44df5525.js"><link rel="prefetch" href="/assets/js/616.8bb42251.js"><link rel="prefetch" href="/assets/js/617.1550fe9f.js"><link rel="prefetch" href="/assets/js/618.1247b611.js"><link rel="prefetch" href="/assets/js/619.8809b2ae.js"><link rel="prefetch" href="/assets/js/62.4ae1f431.js"><link rel="prefetch" href="/assets/js/620.cc4a3af3.js"><link rel="prefetch" href="/assets/js/621.414d1d68.js"><link rel="prefetch" href="/assets/js/622.dbcbfb64.js"><link rel="prefetch" href="/assets/js/623.48dc89ee.js"><link rel="prefetch" href="/assets/js/624.25c47110.js"><link rel="prefetch" href="/assets/js/625.ce0558b1.js"><link rel="prefetch" href="/assets/js/626.96dd94a0.js"><link rel="prefetch" href="/assets/js/627.d3854e8d.js"><link rel="prefetch" href="/assets/js/628.a3a5e2db.js"><link rel="prefetch" href="/assets/js/629.d2f08abf.js"><link rel="prefetch" href="/assets/js/63.49f2bbdc.js"><link rel="prefetch" href="/assets/js/630.b5600d09.js"><link rel="prefetch" href="/assets/js/631.ff9db242.js"><link rel="prefetch" href="/assets/js/632.d1647587.js"><link rel="prefetch" href="/assets/js/633.cea277e2.js"><link rel="prefetch" href="/assets/js/634.122af75b.js"><link rel="prefetch" href="/assets/js/635.7bea6d49.js"><link rel="prefetch" href="/assets/js/636.2d71947d.js"><link rel="prefetch" href="/assets/js/637.95ea8ecc.js"><link rel="prefetch" href="/assets/js/638.1e88f87f.js"><link rel="prefetch" href="/assets/js/639.08a794e6.js"><link rel="prefetch" href="/assets/js/64.2ce1d588.js"><link rel="prefetch" href="/assets/js/640.83817a84.js"><link rel="prefetch" href="/assets/js/642.f1d5e10b.js"><link rel="prefetch" href="/assets/js/643.178e53f8.js"><link rel="prefetch" href="/assets/js/644.1de498c2.js"><link rel="prefetch" href="/assets/js/645.c3a019f8.js"><link rel="prefetch" href="/assets/js/646.9c393f2b.js"><link rel="prefetch" href="/assets/js/65.a5f22217.js"><link rel="prefetch" href="/assets/js/66.40ee9425.js"><link rel="prefetch" href="/assets/js/67.481ed7c8.js"><link rel="prefetch" href="/assets/js/68.74ca9240.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/70.9becc575.js"><link rel="prefetch" href="/assets/js/71.b0903874.js"><link rel="prefetch" href="/assets/js/72.6e7b692c.js"><link rel="prefetch" href="/assets/js/73.e67fabef.js"><link rel="prefetch" href="/assets/js/74.4c8c1379.js"><link rel="prefetch" href="/assets/js/75.7149308e.js"><link rel="prefetch" href="/assets/js/76.e0ce4016.js"><link rel="prefetch" href="/assets/js/77.c31105bc.js"><link rel="prefetch" href="/assets/js/78.73d3cfa1.js"><link rel="prefetch" href="/assets/js/79.4b3118ff.js"><link rel="prefetch" href="/assets/js/8.8908ac1d.js"><link rel="prefetch" href="/assets/js/80.8e295801.js"><link rel="prefetch" href="/assets/js/81.8ceca8c2.js"><link rel="prefetch" href="/assets/js/82.c871eba9.js"><link rel="prefetch" href="/assets/js/83.9683fd81.js"><link rel="prefetch" href="/assets/js/84.13d07b6b.js"><link rel="prefetch" href="/assets/js/85.3779601c.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/88.247a84f5.js"><link rel="prefetch" href="/assets/js/89.36161880.js"><link rel="prefetch" href="/assets/js/9.21757d31.js"><link rel="prefetch" href="/assets/js/90.20240bfa.js"><link rel="prefetch" href="/assets/js/91.2b3836a2.js"><link rel="prefetch" href="/assets/js/92.f744276b.js"><link rel="prefetch" href="/assets/js/93.0c552d4a.js"><link rel="prefetch" href="/assets/js/94.515113cf.js"><link rel="prefetch" href="/assets/js/95.ff6049bd.js"><link rel="prefetch" href="/assets/js/96.3b33cb4c.js"><link rel="prefetch" href="/assets/js/97.ff049c6f.js"><link rel="prefetch" href="/assets/js/98.078707ee.js"><link rel="prefetch" href="/assets/js/99.7a0ece60.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.cd07c2fa.js" defer></script><script src="/assets/js/3.2a42f5e4.js" defer></script><script src="/assets/js/641.8e0801d8.js" defer></script>
  </body>
</html>