[jira] [Comment Edited] (CASSANDRA-17221) Add Math functions

["Ekaterina Dimitrova (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-17221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17581366#comment-17581366 ] 

Ekaterina Dimitrova edited comment on CASSANDRA-17221 at 8/18/22 1:45 PM:
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Hi[~xvade], yes, I spoke to [~blerer] and he put it on his list. Sorry about the delay, 4.1 Is a priority and many people were away lately. But we are getting there. Thank you for your patience and cooperation 


was (Author: e.dimitrova):
I [~xvade], yes, I spoke to [~blerer] and he put it on his list. Sorry about the delay, 4.1 Is a priority and many people were away lately. But we are getting there. Thank you for your patience and cooperation 

> Add Math functions 
> -------------------
>
>                 Key: CASSANDRA-17221
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-17221
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: CQL/Syntax
>            Reporter: Benjamin Lerer
>            Assignee: Simon Chess
>            Priority: Normal
>              Labels: AdventCalendar2021, lhf
>             Fix For: 4.x
>
>
> We should add native Maths functions for the most common operations:
> * {{abs\(x)}} returns the absolute value of the x
> * {{exp\(x)}} returns the value of e (the base of natural logarithms) raised to the power of x
> * {{log\(x)}} returns the natural logarithm (base e) of x
> * {{log10\(x)}} returns the base-10 logarithm of x
> * {{round\(x)}} returns the closest integer to x
> +Additional information for newcomers:+
> The new functions should be put in a new class {{MathFcts}} similar to {{TimeFcts}}.
> The {{MathsFcts.all()}} method should be called in {{SystemKeyspace.functions}}
> The unit tests for the functions should be put in a {{MathFctsTest}} similar to {{TimeFctsTest}} 



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