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Posted to issues@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2018/10/26 09:52:00 UTC

[jira] [Assigned] (ARROW-3487) [Gandiva] simplify NULL_IF_NULL functions that can return errors

     [ https://issues.apache.org/jira/browse/ARROW-3487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wes McKinney reassigned ARROW-3487:
-----------------------------------

    Assignee: Pindikura Ravindra

> [Gandiva] simplify NULL_IF_NULL functions that can return errors
> ----------------------------------------------------------------
>
>                 Key: ARROW-3487
>                 URL: https://issues.apache.org/jira/browse/ARROW-3487
>             Project: Apache Arrow
>          Issue Type: Task
>          Components: Gandiva
>            Reporter: Pindikura Ravindra
>            Assignee: Pindikura Ravindra
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 0.12.0
>
>          Time Spent: 1h 10m
>  Remaining Estimate: 0h
>
> NULL_IF_NULL functions that can return errors eg. divide currently look at the validity bits in each function (to avoid returning spurious errors).
>  
> {code:java}
> divide(TYPE in1, boolean is_valid1, TYPE in2, boolean is_valid2, ..) {
>     if (!is_valid1 || !is_valid2) { 
>       return 0;
>     }
>     if (in2 == 0) { /* set error */ }
> }
> {code}
>  
> This validity check is duplicated for multiple functions and should be moved to the common layer (for all NULL_IF_NULL functions that can return error).
>  
>  



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