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Berenguer Blasi commented on CASSANDRA-17221: --------------------------------------------- [~xvade] I see you have a new class {{BigDecimalUtil}} in which you mention: {noformat} /* Taken with permission from Java Number Cruncher: The Java Programmer's Guide to Numerical Computing */ {noformat} Can you please elaborate a bit please on the licensing, did you ping the author,...? Apologies if I am missing anything obvious here but I was wondering. > 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}} -- This message was sent by Atlassian Jira (v8.20.1#820001) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org