juice411 opened a new issue #1093:
URL: https://github.com/apache/incubator-iotdb/issues/1093


   create timeseries root.turbine.d1.s1(temprature) with datatype=FLOAT, 
encoding=RLE, compression=SNAPPY tags(tag1=v1, tag2=v2) attributes(attr1=v1, 
attr2=v2)
   目前支持在新建timeseries 
的时候可以添加tag等标签信息,但一旦实施人员疏忽或需求变化,前期添加的tag信息就没法更新,除非删除timeseries重新建,这样涉及到已有数据是不能删除的,因此很麻烦,需要类似如下的功能:
   alter timeseries root.turbine.d1.s1 change tag1 newV1
   alter timeseries root.turbine.d1.s1 add tag3 v3
   alter timeseries root.turbine.d1.s1 drop tag2
   
   这样就可以方便的管理这些信息而不用删除数据
   
   


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