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https://issues.apache.org/jira/browse/ARROW-2471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16443812#comment-16443812
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ASF GitHub Bot commented on ARROW-2471:
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pitrou commented on issue #1911: ARROW-2471: [Rust] Builder zero capacity fix
URL: https://github.com/apache/arrow/pull/1911#issuecomment-382679496
This PR has conflicts now.
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> [Rust] Assertion when pushing value to Builder/ListBuilder with zero capacity
> -----------------------------------------------------------------------------
>
> Key: ARROW-2471
> URL: https://issues.apache.org/jira/browse/ARROW-2471
> Project: Apache Arrow
> Issue Type: Bug
> Components: Rust
> Reporter: Andy Grove
> Assignee: Andy Grove
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.10.0
>
>
> If a builder is created with capacity 0 and then data is pushed to the
> builder, memory reallocation is not triggered and the push fails with an
> assertion.
> The root cause is that memory reallocation calculates the new capacity as 2x
> the current capacity which doesn't work if the current capacity is zero.
>
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