[jira] [Reopened] (ARROW-11248) [Rust] [Arrow] defects in array::transform::utils::set_bits()

["Qingyou Meng (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-11248?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Qingyou Meng reopened ARROW-11248:
----------------------------------

> [Rust] [Arrow] defects in array::transform::utils::set_bits()
> -------------------------------------------------------------
>
>                 Key: ARROW-11248
>                 URL: https://issues.apache.org/jira/browse/ARROW-11248
>             Project: Apache Arrow
>          Issue Type: Improvement
>            Reporter: Qingyou Meng
>            Priority: Major
>
> According to the comments from function `set_bits`:
>   
> {code:java}
> /// sets all bits on `write_data` on the range `[offset_write..offset_write+len]` to be equal to the
> /// bits on `data` on the range `[offset_read..offset_read+len]`{code}
> The function has a defect if `write_data` contains non-null bits: it does not unset bits and update the `diff count`.



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