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https://issues.apache.org/jira/browse/ARROW-17556?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Weston Pace resolved ARROW-17556.
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Resolution: Fixed
Issue resolved by pull request 14264
[https://github.com/apache/arrow/pull/14264]
> [C++] Unbound scan projection expression leads to all fields being loaded
> -------------------------------------------------------------------------
>
> Key: ARROW-17556
> URL: https://issues.apache.org/jira/browse/ARROW-17556
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Weston Pace
> Assignee: Vibhatha Lakmal Abeykoon
> Priority: Blocker
> Labels: pull-request-available
> Fix For: 10.0.0
>
> Time Spent: 1h 40m
> Remaining Estimate: 0h
>
> If a projection expression is unbound then we should bind it to the
> (augmented) dataset schema and carry on. Instead it appears we are
> interpreting "unbound expression" as "nothing set at all" and loading all
> fields.
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