[
https://issues.apache.org/jira/browse/ARROW-11928?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ben Kietzman resolved ARROW-11928.
----------------------------------
Resolution: Fixed
Issue resolved by pull request 10204
[https://github.com/apache/arrow/pull/10204]
> [C++][Compute] Add ExecNode hierarchy
> -------------------------------------
>
> Key: ARROW-11928
> URL: https://issues.apache.org/jira/browse/ARROW-11928
> 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: 7h 40m
> Remaining Estimate: 0h
>
> Per discussion on
> https://docs.google.com/document/d/1AyTdLU-RxA-Gsb9EsYnrQrmqPMOYMfPlWwxRi1Is1tQ
> Add an ExecNode interface with which a streaming execution graph can be
> constructed. Initial concrete classes will include:
> - ScanNode, which wraps a dataset and is a pure emitter of batches
> (initially, this will only wrap memory sized datasets such as tables. See
> ARROW-11930)
> - FilterNode, which evaluates an expression on inputs and based on the result
> removes rows from batches (eventually, this may defer materialization of the
> selection to other kernels. See ARROW-5005 ARROW-10474)
> - ProjectNode, which evaluates expressions on inputs producing new columns.
> - GroupedAggregateNode, which computes aggregations grouped on one or more
> keys.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
