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Posted to issues@arrow.apache.org by "Andy Grove (JIRA)" <ji...@apache.org> on 2018/04/18 23:28:00 UTC

[jira] [Commented] (ARROW-2471) [Rust] Assertion when pushing value to Builder/ListBuilder with zero capacity

    [ https://issues.apache.org/jira/browse/ARROW-2471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16443334#comment-16443334 ] 

Andy Grove commented on ARROW-2471:
-----------------------------------

PR: https://github.com/apache/arrow/pull/1911

> [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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