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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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Wes McKinney resolved ARROW-3740.
---------------------------------
Resolution: Fixed
Issue resolved by pull request 3055
[https://github.com/apache/arrow/pull/3055]
> [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
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> 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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