Tian Jiang created IOTDB-163:
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Summary: Support create device template and create device.
Key: IOTDB-163
URL: https://issues.apache.org/jira/browse/IOTDB-163
Project: Apache IoTDB
Issue Type: Improvement
Reporter: Tian Jiang
In the present version, it is a little trouble some to create a set timeseries
that has the same measurements. On the other hand, although we use the
conception "device" in the code, it is not properly abstracted.
Expected usage:
Using IoTDB in a more _*relational*_ way:
*CREATE DEVICE TEMPLATE vehicle (speed DOUBLE PLAIN, direction* *DOUBLE PLAIN,
temperature* *DOUBLE PLAIN, fuel* *DOUBLE PLAIN******)*
If all datatypes(or encodings) are the same, you can write the equal form:
*CREATE DEVICE TEMPLATE vehicle MEASUREMENTS (speed, direction, temperature,
fuel) DATATYPE DOUBLE ENCODING PLAIN*
Then you will be able to create time series in an easier way:
*CREATE DEVICE (vehicle) root.sg1.vehicle1*
Which equals:
*CREATE TIMESERIES root.sg1.vehicle1.speed WITH DATATYPE=DOUBLE,ENCODING=PLAIN*
*CREATE TIMESERIES root.sg1.vehicle1.direction WITH
DATATYPE=DOUBLE,ENCODING=PLAIN*
*CREATE TIMESERIES root.sg1.vehicle1.fuel WITH DATATYPE=DOUBLE,ENCODING=PLAIN*
*CREATE TIMESERIES root.sg1.vehicle1.temperature WITH
DATATYPE=DOUBLE,ENCODING=PLAIN*
I ** hope this will narrow the gap of using IoTDB and traditional relation
databases.
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