andygrove opened a new issue, #810: URL: https://github.com/apache/datafusion-comet/issues/810
### What is the problem the feature request solves? Comet currently performances poorly with the following query when broadcast hash joins are disabled and when Comet native shuffle is disabled. ```sql select ss_sold_date_sk, ss_sold_time_sk, ss_quantity, d_year, d_moy, d_dom from date_dim join store_sales on d_date_sk = ss_sold_date_sk where d_year = 2000; ``` Benchmark results (running aginst sf=100 dataset): ``` AMD Ryzen 9 7950X3D 16-Core Processor TPCDS Micro Benchmarks: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ join_inner 512 537 35 562.4 1.8 1.0X join_inner: Comet (Scan) 738 750 13 390.3 2.6 0.7X join_inner: Comet (Scan, Exec) 4564 4724 226 63.1 15.8 0.1X ``` Sample native plan with metrics: ``` FilterExec: col_0@0 IS NOT NULL AND BloomFilterMightContain [bloom_filter_expr: Subquery [id: 2851], value_expr: xxhash64(col_0@0, 42)], metrics=[output_rows=605440, elapsed_compute=85.205965ms] ScanExec: source=[CometScan parquet spark_catalog.default.store_sales (unknown)], schema=[col_0: Int32, col_1: Int32, col_2: Int32], metrics=[output_rows=3145728, elapsed_compute=19.12706ms] ``` ### Describe the potential solution _No response_ ### Additional context _No response_ -- 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: github-unsubscr...@datafusion.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org For additional commands, e-mail: github-h...@datafusion.apache.org