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https://issues.apache.org/jira/browse/ARROW-3740?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated ARROW-3740:
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    Labels: pull-request-available  (was: )

> [C++] Calling ArrayBuilder::Resize with length smaller than current appended 
> length results in invalid state
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: ARROW-3740
>                 URL: https://issues.apache.org/jira/browse/ARROW-3740
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: C++
>    Affects Versions: 0.11.1
>            Reporter: Wes McKinney
>            Assignee: Francois Saint-Jacques
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 0.12.0
>
>
> This was brought up by the Go patch ARROW-3613. If you append some data to a 
> builder, then call {{Resize}} with something smaller than what's reported by 
> {{length()}}, the capacity will be updated, but the length will not. So I 
> think further appends would probably segfault. Either way we should add some 
> tests for this case of "shrinking" a builder (which destroys data, but it's 
> permitted by the API 



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