[PR] Core: Use CharSequenceMap for writing unordered deletes [iceberg]

[via GitHub]

aokolnychyi opened a new pull request, #9365:
URL: https://github.com/apache/iceberg/pull/9365

   This PR migrates `SortingPositionOnlyDeleteWriter` to use `CharSequenceMap` 
to simplify the code. The new solution is essentially the same in terms of 
functionality and performance.
   
   **Before**
   
   ```
   Benchmark                                                                    
        Mode  Cnt  Score   Error  Units
   ParquetWritersBenchmark.writeUnpartitionedClusteredPositionDeleteWriter      
          ss    5  1.682 ± 0.242   s/op
   ParquetWritersBenchmark.writeUnpartitionedFanoutPositionDeleteWriter         
          ss    5  2.949 ± 0.092   s/op
   ParquetWritersBenchmark.writeUnpartitionedFanoutPositionDeleteWriterShuffled 
          ss    5  3.428 ± 0.089   s/op
   ```
   
   **After**
   
   ```
   Benchmark                                                                    
        Mode  Cnt  Score   Error  Units
   ParquetWritersBenchmark.writeUnpartitionedClusteredPositionDeleteWriter      
          ss    5  1.608 ± 0.122   s/op
   ParquetWritersBenchmark.writeUnpartitionedFanoutPositionDeleteWriter         
          ss    5  2.998 ± 0.061   s/op
   ParquetWritersBenchmark.writeUnpartitionedFanoutPositionDeleteWriterShuffled 
          ss    5  3.209 ± 0.480   s/op
   ```


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org

For queries about this service, please contact Infrastructure at:
us...@infra.apache.org


---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org
For additional commands, e-mail: issues-h...@iceberg.apache.org