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Posted to jira@arrow.apache.org by "David Li (Jira)" <ji...@apache.org> on 2021/04/30 00:43:00 UTC

[jira] [Resolved] (ARROW-11929) [C++][Compute] Promote Expression to the compute namespace

     [ https://issues.apache.org/jira/browse/ARROW-11929?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Li resolved ARROW-11929.
------------------------------
    Fix Version/s: 5.0.0
       Resolution: Fixed

Issue resolved by pull request 10166
[https://github.com/apache/arrow/pull/10166]

> [C++][Compute] Promote Expression to the compute namespace
> ----------------------------------------------------------
>
>                 Key: ARROW-11929
>                 URL: https://issues.apache.org/jira/browse/ARROW-11929
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>    Affects Versions: 3.0.0
>            Reporter: Ben Kietzman
>            Assignee: Ben Kietzman
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 5.0.0
>
>          Time Spent: 1h 10m
>  Remaining Estimate: 0h
>
> See discussion in https://docs.google.com/document/d/1AyTdLU-RxA-Gsb9EsYnrQrmqPMOYMfPlWwxRi1Is1tQ
> This will be necessary for ARROW-11928 since some ExecNodes will be constructed with one or more Expressions. For example FilterNodes will evaluate an Expression against their input batches to produce selection vectors.
> This should probably include factoring out dataset-specific considerations such as allowing input batches diverge slightly in schema. Bound Expressions should refer to their parameters by index so that by-name lookup can be avoided.



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