"How to assign and unassign a template to a node" should be defined clearly before implementation.
----------------------------------- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院 Jialin Qiao <[email protected]> 于2021年7月24日周六 下午2:40写道： > +1 > ————————————————— > Jialin Qiao > School of Software, Tsinghua University > > 乔嘉林 > 清华大学 软件学院 > > > 周钰坤 <[email protected]> 于2021年7月24日周六 上午10:07写道： > > > Hi, > > > > Apache IoTDB supports Measurement Template feature from version 0.13. > > The current version allows user to set different templates to different > > nodes of a path and the nearest template to current node will be valid. > > This will result in schema and data lost while user set a new > template, > > which doesn't contain schemas in the existing upper template. > > Therefore, a new constraint will be introduced. If a template has > been > > set to a node, it will be forbidden to set any template to the ancestors > or > > descendants of this node, like the constraint of storage group. > > > > Thanks, > > Yukun Zhou > > >
