Hi,

I’d vote for 

[2] select last(s1), last(s2) from root.sg.d align by sensor

It looks simple, it's easy to use, it's human logic


Thanks
---
Dawei Liu



> 2020年2月21日 下午5:26,Wei Shao <[email protected]> 写道:
> 
> Hi,
> 
> 
> I'd vote for
> [4]. select last s1, s2 from root.sg.d
> 
> 
> Thanks,
> Wei
> 
> 
> 
> At 2020-02-21 17:08:14, "Wei Shao" <[email protected]> wrote:
>> Hi,
>> 
>> 
>> We are to determine the exact syntax of Last Query for IoTDB. Last query is 
>> to select the latest time-value pair result for a given timeseries.
>> You can choose from the following syntax options.
>> 1. select last(s1), last(s2) from root.sg.d
>> 2. select last(s1), last(s2) from root.sg.d align by sensor
>> 3. select last(s1, s2) from root.sg.d
>> 4. select last s1, s2 from root.sg.d
>> 5. last s1, s2 from root.sg.d
>> 6. select s1, s2 from root.sg.d last
>> 7. select s1, s2 from root.sg.d onlylast
>> 
>> 
>> Please vote for the option you are comfortable with.
>> 
>> 
>> Thanks,
>> Wei

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