[jira] [Updated] (ARROW-10042) [Rust] Buffer equalities may be incorrect

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-10042?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated ARROW-10042:
-----------------------------------
    Labels: pull-request-available  (was: )

> [Rust] Buffer equalities may be incorrect
> -----------------------------------------
>
>                 Key: ARROW-10042
>                 URL: https://issues.apache.org/jira/browse/ARROW-10042
>             Project: Apache Arrow
>          Issue Type: Bug
>    Affects Versions: 1.0.1
>            Reporter: Jorge Leitão
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Two (byte) buffers are equal if their contents are equal.
> However, currently, {{BufferData}} comparison ({{PartialEq}}) uses its {{capacity}} as part of the comparison. Therefore, two slices are considered different even when their content is the same but the corresponding {{BufferData}} has a different capacity.
> Since this equality is used by {{Buffer}}'s equality, which is used by all our arrays, currently arrays are different when their contents are the same but the underlying capacity is different. I am not sure that this is what we want.



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