adriangb commented on PR #21806:
URL: https://github.com/apache/datafusion/pull/21806#issuecomment-4355429631

   > > > Benchmark for [this 
request](https://github.com/apache/datafusion/pull/21806#issuecomment-4348058676)
 failed.
   > > > Last 20 lines of output:
   > > > Click to expand
   > > 
   > > 
   > > It looks like it can't load the lineitem table
   > 
   > maybe we should add a sanity check to the benchmark runner / better error 
message (so it fails with a message that says the files aren't there rather 
than failing on the expected output check) 🤔
   
   Yes, I’ve run into this issue before. Even with just DataFusion CLI if you 
pointed to an empty directory, it will give you a table with no columns instead 
of some sort of error that says there’s no data here. I can’t think of any use 
case where you’d want to infer a schema with no columns instead of en error 
saying there’s no data.


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