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https://issues.apache.org/jira/browse/ARROW-16966?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Antoine Pitrou resolved ARROW-16966.
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Fix Version/s: 9.0.0
Resolution: Fixed
Issue resolved by pull request 13494
[https://github.com/apache/arrow/pull/13494]
> [Doc] Document Substrait conformance
> ------------------------------------
>
> Key: ARROW-16966
> URL: https://issues.apache.org/jira/browse/ARROW-16966
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++, Documentation
> Reporter: Weston Pace
> Assignee: Weston Pace
> Priority: Major
> Labels: pull-request-available
> Fix For: 9.0.0
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Acero will never have 100% Substrait conformance. To begin with there will
> be a number of features that we simply have not yet implemented. In the
> future there will likely still be some features that we never implement (e.g.
> Acero is likely to be a rather simple producer and will reject most "plan
> shorthand").
> In the future we will hopefully have a way of expressing this
> programmatically. However, this hasn't been figured out by Substrait yet.
> In the meantime we should clearly document which parts of Substrait we do and
> do not support.
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