You are viewing a plain text version of this content. The canonical link for it is here.

Posted to notifications@iotdb.apache.org by "limeng32 (Jira)" <ji...@apache.org> on 2022/02/17 05:55:00 UTC

[jira] [Created] (IOTDB-2558) Library-UDF Postfix-Expression Functions

limeng32 created IOTDB-2558:
-------------------------------

             Summary: Library-UDF Postfix-Expression Functions
                 Key: IOTDB-2558
                 URL: https://issues.apache.org/jira/browse/IOTDB-2558
             Project: Apache IoTDB
          Issue Type: New Feature
            Reporter: limeng32
            Assignee: limeng32


I noticed there is currently no function to implement mixed calculations, considering that currently UDF does not support nesting, it is possible to use postfix-expressions (aka reverse-polish-expressions) to do this, so I want to implement one that can match any numeric data type's postfix-expression method.

 

简略：一个可以实现任意类型加减乘除乘方开方混合计算的后缀表达式方法。



--
This message was sent by Atlassian Jira
(v8.20.1#820001)