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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/11/02 17:21:20 UTC

[GitHub] [arrow-rs] alamb opened a new issue, #3003: Add `RowSelection::intersection

alamb opened a new issue, #3003:
URL: https://github.com/apache/arrow-rs/issues/3003

   **Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
   While @Ted-Jiang  was working on https://github.com/apache/arrow-datafusion/pull/3967 he needed code to intersect two row selections:
   
   ```rust
   // combine two `RowSelection` return the intersection
   // For example:
   // self:     NNYYYYNNY
   // other:    NYNNNNNNY
   //
   // returned: NNNNNNNNY
   // set `need_combine` true will combine result: Select(2) + Select(1) + Skip(2) -> Select(3) + Skip(2)
   ```
   
   The code and tests are in DataFusion
   
   **Describe the solution you'd like**
   I would like to code and tests brought to arrow-rs 
   
   see `pub(crate) fn intersect_row_selection(` specifically
   
   **Describe alternatives you've considered**
   Leave in DataFusion
   
   **Additional context**
   


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[GitHub] [arrow-rs] tustvold closed issue #3003: Add `RowSelection::intersection`

Posted by GitBox <gi...@apache.org>.
tustvold closed issue #3003: Add `RowSelection::intersection`
URL: https://github.com/apache/arrow-rs/issues/3003


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[GitHub] [arrow-rs] paddyhoran commented on issue #3003: Add `RowSelection::intersection`

Posted by GitBox <gi...@apache.org>.
paddyhoran commented on issue #3003:
URL: https://github.com/apache/arrow-rs/issues/3003#issuecomment-1301018829

   +1 for moving this down into `arrow-rs`


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