| (window.webpackJsonp=window.webpackJsonp||[]).push([[79],{475:function(t,e,a){"use strict";a.r(e);var i=a(29),l=Object(i.a)({},(function(){var t=this,e=t._self._c;return e("ContentSlotsDistributor",{attrs:{"slot-key":t.$parent.slotKey}},[e("h1",{attrs:{id:"auto-create-metadata"}},[e("a",{staticClass:"header-anchor",attrs:{href:"#auto-create-metadata"}},[t._v("#")]),t._v(" Auto create metadata")]),t._v(" "),e("p",[t._v("Automatically creating schema means creating time series based on the characteristics of written data in case time series haven't defined by users themselves.\nThis function can not only solve the problem that entities and measurements are difficult to predict and model in advance under massive time series scenarios,\nbut also provide users with an out-of-the-box writing experience.")]),t._v(" "),e("h2",{attrs:{id:"auto-create-storage-group-metadata"}},[e("a",{staticClass:"header-anchor",attrs:{href:"#auto-create-storage-group-metadata"}},[t._v("#")]),t._v(" Auto 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"),e("ul",[e("li",[t._v("default_storage_group_level")])]),t._v(" "),e("table",[e("thead",[e("tr",[e("th",{staticStyle:{"text-align":"center"}},[t._v("Name")]),t._v(" "),e("th",{staticStyle:{"text-align":"left"}},[t._v("default_storage_group_level")])])]),t._v(" "),e("tbody",[e("tr",[e("td",{staticStyle:{"text-align":"center"}},[t._v("Description")]),t._v(" "),e("td",{staticStyle:{"text-align":"left"}},[t._v("Specify which level storage group is in the time series, the default level is 1 (root is on level 0)")])]),t._v(" "),e("tr",[e("td",{staticStyle:{"text-align":"center"}},[t._v("Type")]),t._v(" "),e("td",{staticStyle:{"text-align":"left"}},[t._v("int")])]),t._v(" "),e("tr",[e("td",{staticStyle:{"text-align":"center"}},[t._v("Default")]),t._v(" "),e("td",{staticStyle:{"text-align":"left"}},[t._v("1")])]),t._v(" "),e("tr",[e("td",{staticStyle:{"text-align":"center"}},[t._v("Effective")]),t._v(" "),e("td",{staticStyle:{"text-align":"left"}},[t._v("Only allowed to be modified in first start up")])])])]),t._v(" "),e("p",[t._v("Illustrated as the following figure:")]),t._v(" "),e("ul",[e("li",[e("p",[t._v("When default_storage_group_level=1, root.turbine1 and root.turbine2 will be set as storage group.")])]),t._v(" "),e("li",[e("p",[t._v("When default_storage_group_level=2, root.turbine1.d1, root.turbine1.d2, root.turbine2.d1 and root.turbine2.d2 will be set as storage group.")])])]),t._v(" "),e("img",{staticStyle:{width:"100%","max-width":"800px","max-height":"600px","margin-left":"auto","margin-right":"auto",display:"block"},attrs:{src:"https://github.com/apache/iotdb-bin-resources/blob/main/docs/UserGuide/Data%20Concept/Auto-Create-MetaData/auto_create_sg_example.png?raw=true",alt:"auto create storage group example"}}),t._v(" "),e("h2",{attrs:{id:"auto-create-time-series-metadata-specify-data-type-in-the-frontend"}},[e("a",{staticClass:"header-anchor",attrs:{href:"#auto-create-time-series-metadata-specify-data-type-in-the-frontend"}},[t._v("#")]),t._v(" Auto create 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