[GitHub] [incubator-iotdb] qiaojialin opened a new pull request #1585: set props in MeasurementSchema to null by default to release memory

[GitBox]

qiaojialin opened a new pull request #1585:
URL: https://github.com/apache/incubator-iotdb/pull/1585


   If not set the props, 10M timeseries will save 480M memory.
   
   
![image](https://user-images.githubusercontent.com/7240743/88903040-9cb7dc80-d285-11ea-8d99-616617fb2385.png)
   


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