Open andygrove opened 2 weeks ago
As an experiment, I removed our check where we fall back to Spark for BuildRight with LeftAnti so that the query runs natively (possibly with incorrect results) and performance increased significantly and matched Spark (but was not faster). I no longer saw the "BroadcastExchange is not supported" error.
At the end of the query we are performing a RowToColumnar to move to Comet just for a query stage that performs a sort and then perform a ColumnarToRow. This likely explains why we currently make the query slower than Spark.
What is the problem the feature request solves?
Comet is currently slower than Spark for TPC-H q16.
This query does not run fully native yet.
Issues
Describe the potential solution
No response
Additional context
No response