[ 
https://issues.apache.org/jira/browse/CASSANDRA-15232?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Benedict updated CASSANDRA-15232:
---------------------------------
         Complexity: Low Hanging Fruit
    Change Category: Semantic
        Component/s: CQL/Semantics
             Status: Open  (was: Triage Needed)

> Arithmetic operators over decimal truncate results
> --------------------------------------------------
>
>                 Key: CASSANDRA-15232
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-15232
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: CQL/Semantics
>            Reporter: Benedict
>            Priority: Normal
>
> The decimal operators hard-code a 128 bit precision for their computations.  
> Probably a precision needs to be configured or decided somehow, but it’s not 
> clear why 128bit was chosen.  Particularly for multiplication and addition, 
> it’s very unclear why we truncate, which is different to our behaviour for 
> e.g. sum() aggregates.  Probably for division we should also ensure that we 
> do not reduce the precision of the two operands.  A minimum of decimal128 
> seems reasonable, but a maximum does not.



--
This message was sent by Atlassian JIRA
(v7.6.14#76016)

---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org
For additional commands, e-mail: commits-h...@cassandra.apache.org

Reply via email to