I know a PhD student is doing some similar thing. Maybe we can have a discussion.
@赵鑫, if you want to contribute your idea and work to the open source community, do not miss this. If you just consider the achievement as a non open source research, it is fine. Best, ----------------------------------- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院 Houliang Qi (Jira) <[email protected]> 于2021年1月12日周二 下午3:37写道： > > [ > https://issues.apache.org/jira/browse/IOTDB-910?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17263128#comment-17263128 > ] > > Houliang Qi commented on IOTDB-910: > ----------------------------------- > > one solution is to add the create/update time in the tags of the > timeseries, when we create timeseries or update timeseries, we can change > the create/update time in the tags. in other words, we can add two default > tags with the timeseries, that is create time and update time. > > > > further on, how about adding one map<String, Object> in every MNode, then > we can add create time and update time in the device node. > > > > > Support time range interval query of metadata(timeseries,devices) and so > on > > > --------------------------------------------------------------------------- > > > > Key: IOTDB-910 > > URL: https://issues.apache.org/jira/browse/IOTDB-910 > > Project: Apache IoTDB > > Issue Type: New Feature > > Components: Core/Engine > > Reporter: Houliang Qi > > Priority: Major > > > > Maybe we can treate the metadata(timeseries) as special data like the > timeseries's values. and support metadata query like data query. > > One way to do this is to add the metadata to one metadata_table, like > the information_schema.tables of mysql. > > > > -- > This message was sent by Atlassian Jira > (v8.3.4#803005) >
