[ https://issues.apache.org/jira/browse/IOTDB-3784?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Zhong Wang reassigned IOTDB-3784: --------------------------------- Assignee: Zhong Wang > Tag aggregation > --------------- > > Key: IOTDB-3784 > URL: https://issues.apache.org/jira/browse/IOTDB-3784 > Project: Apache IoTDB > Issue Type: New Feature > Components: Core/Query > Reporter: Zhong Wang > Assignee: Zhong Wang > Priority: Major > > Tags and levels of a path represent some dimensions of a timeseries. While > the levels are anonymous, tags has the tag key as their name. Since the path > of a timeseries is hard to change once it is created, tags are more flexible > and can be added or dropped easily. > IoTDB now supports level aggregation. But tags are used only to filter out > timeseries in `SHOW TIMESERIES` statement, and that's why tags are not > widely used. > Supporting tag aggregation allows users to store the dimensions as tags and > provides the ability to do complex analysis over their timeseries data. -- This message was sent by Atlassian Jira (v8.20.10#820010)