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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/06/06 13:13:29 UTC

[GitHub] [arrow-rs] tustvold opened a new issue, #1802: Sliceable BitMap

tustvold opened a new issue, #1802:
URL: https://github.com/apache/arrow-rs/issues/1802

   **Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
   
   Currently `BitMap` is a simple wrapper around a `Buffer`. This limits it to slicing on multiples of 8, as `Buffer` can only slice at byte boundaries.
   
   **Describe the solution you'd like**
   
   Add an offset and length to `BitMap`, updating the accessors to take this into account. This may require deprecating and removing `buffer_ref`, and/or making it panic if non-zero offset.
   
   Add a slice method to `BitMap` that uses the offset and length to perform zero-copy slicing.
   
   **Describe alternatives you've considered**
   
   We could not do this.
   
   **Additional context**
   
   Feeds into https://github.com/apache/arrow-rs/issues/1799
   


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[GitHub] [arrow-rs] tustvold closed issue #1802: Sliceable BitMap

Posted by "tustvold (via GitHub)" <gi...@apache.org>.

tustvold closed issue #1802: Sliceable BitMap
URL: https://github.com/apache/arrow-rs/issues/1802


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[GitHub] [arrow-rs] HaoYang670 commented on issue #1802: Sliceable BitMap

Posted by GitBox <gi...@apache.org>.

HaoYang670 commented on issue #1802:
URL: https://github.com/apache/arrow-rs/issues/1802#issuecomment-1148106456

   Related to this issue: https://github.com/apache/arrow-rs/issues/1728


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