[jira] [Updated] (ARROW-34) C++: establish a basic function evaluation model

["Rok Mihevc (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-34?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rok Mihevc updated ARROW-34:
----------------------------
    External issue URL: https://github.com/apache/arrow/issues/15403

> C++: establish a basic function evaluation model
> ------------------------------------------------
>
>                 Key: ARROW-34
>                 URL: https://issues.apache.org/jira/browse/ARROW-34
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++
>            Reporter: Wes McKinney
>            Assignee: Wes McKinney
>            Priority: Major
>             Fix For: 0.7.0
>
>
> We don't exactly have a working model for executing functions on Arrow objects that require memory allocations (either for intermediate storage of results). 
> For example:
> F(input1, input2) -> output
> Since the output type may depend on the input types, F in general will need to be able to request memory to be allocated. This will have to be figured out (some sort of ArrowContext with a memory pool attached) in due course. For example:
> F(ctx, input1, input2) -> output
> Where ctx is a Context object provided access to memory resources and other system state (user-configurable).



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