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https://issues.apache.org/jira/browse/ARROW-8792?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated ARROW-8792:
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Labels: pull-request-available (was: )
> [C++] Improved declarative compute function / kernel development framework,
> normalize calling conventions
> ---------------------------------------------------------------------------------------------------------
>
> Key: ARROW-8792
> URL: https://issues.apache.org/jira/browse/ARROW-8792
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Wes McKinney
> Assignee: Wes McKinney
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.0.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> I'm working on a significant revamp of the way that kernels are implemented
> in the project as discussed on the mailing list. PR to follow within the next
> week or sooner
> A brief list of features:
> * Kernel selection that takes into account the shape of inputs (whether
> Scalar or Array, so you can provide an implementation just for Arrays and a
> separate one just for Scalars if you want)
> * More customizable / less monolithic type-to-kernel dispatch
> * Standardized C++ function signature for kernel implementations (rather than
> every one being a little bit special)
> * Multiple implementations of the same function can coexist (e.g. with /
> without SIMD optimizations) so that you can choose the one you want at runtime
> * Browsable function registry (see all available kernels and their input type
> signatures)
> * Central code path for type-checking and argument validation
> * Central code path for kernel execution on ChunkedArray inputs
> There's a lot of JIRAs in the backlog that will follow from this work so I
> will attach those to this issue for visibility but this issue will cover the
> initial refactoring work to port the existing code to the new framework
> without altering existing features.
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