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https://issues.apache.org/jira/browse/ARROW-7390?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Francois Saint-Jacques updated ARROW-7390:
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Component/s: C++ - Dataset
> [C++][Dataset] Concurrency race in Projector::Project
> ------------------------------------------------------
>
> Key: ARROW-7390
> URL: https://issues.apache.org/jira/browse/ARROW-7390
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++ - Dataset
> Reporter: Francois Saint-Jacques
> Priority: Major
>
> When a DataFragment is invoked by 2 scan tasks of the same DataFragment,
> there's a race to invoke SetInputSchema. Note that ResizeMissingColumns also
> suffers from this race. The ideal goal is to make Project a const method.
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