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