dwsmith1983 commented on issue #6133:
URL: 
https://github.com/apache/datafusion-comet/issues/6133#issuecomment-5869961683

   Thanks for running all three. q5 is the clear result: the failure under the 
default scan selection is gone in both configurations, and the checksums match 
Spark.
   
   Agreed on q64: a clean batch on stock can't separate the fix from a good 
day. Your reuse-on plan has the shape #6270 keeps, with two separate 
`store_sales` scans each carrying its own pruning filter and no reuse across 
the two `store_sales ⋈ store_returns` joins. In a 0-row run on stock, I'd 
expect a `ReusedExchange` in place of the second branch's join (or its 
broadcast) pointing at the first branch's, while the scan-level plan looks the 
same.
   


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