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Posted to github@arrow.apache.org by "korowa (via GitHub)" <gi...@apache.org> on 2023/02/17 07:46:52 UTC

[GitHub] [arrow-datafusion] korowa commented on issue #5276: Update benchmmarks on clickbench

korowa commented on issue #5276:
URL: https://github.com/apache/arrow-datafusion/issues/5276#issuecomment-1434253563

   > One thing I noticed is that duckdb loads partitioned parquet files: https://github.com/ClickHouse/ClickBench/blob/main/duckdb-parquet/benchmark.sh as opposed to datafusion: https://github.com/ClickHouse/ClickBench/blob/main/datafusion/benchmark.sh. I guess this can impact parallelism?
   
   Not sure about DuckDB -- it seems to be able to parallelise reads of single file (at least latest version), but it definitely caused lack of parallelism for Datafusion


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