ASF GitHub Bot commented on ARROW-2171:

pitrou commented on issue #1626: ARROW-2171: [C++/Python] Make OwnedRef safer
URL: https://github.com/apache/arrow/pull/1626#issuecomment-366688239
   Looks like C++ compilers don't all follow the same inheritance rules for 

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> [Python] OwnedRef is fragile
> ----------------------------
>                 Key: ARROW-2171
>                 URL: https://issues.apache.org/jira/browse/ARROW-2171
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Python
>    Affects Versions: 0.8.0
>            Reporter: Antoine Pitrou
>            Assignee: Antoine Pitrou
>            Priority: Major
>              Labels: pull-request-available
> Some uses of OwnedRef can implicitly invoke its (default) copy constructor, 
> which will lead to extraneous decrefs.

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