?????? [Discussion] The aggregation function name of getting extreme value

Tue, 01 Jun 2021 22:52:34 -0700 

2??extreme




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??????:                                                                         
                                               "dev"                            
                                                        
<[email protected]&gt;;
????????:&nbsp;2021??6??2??(??????) ????10:51
??????:&nbsp;"dev"<[email protected]&gt;;

????:&nbsp;Re: [Discussion] The aggregation function name of getting extreme 
value



Welcome to vote and any discussion. :D

Xiangwei Wei <[email protected]&gt; ??2021??6??2?????? ????10:50??????

&gt; Hi guys,
&gt;
&gt; We plan to add a new aggregation function, whose function is to take the
&gt; extreme value, that is, to return the maximum absolute value (the preferred
&gt; positive value). The typical use scenario is the vibration amplitude of the
&gt; bridge.
&gt; It has been contributed by @Liu Yu ~[1].
&gt;
&gt; One of the issues that we need to discuss with you is the name of this
&gt; aggregate function. At present, it is called `ext`, for example, ext(s1).
&gt; We should take a name which is intuitive and easy to understand.
&gt; Alternative options:
&gt; 1. ext
&gt; 2. extreme
&gt; 3. ext_value
&gt;
&gt;
&gt;
&gt; [1] https://github.com/apache/iotdb/pull/3289
&gt; --
&gt; Best,
&gt; Xiangwei Wei
&gt;


-- 
Best,
Xiangwei Wei

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