alamb commented on issue #24438:
URL: https://github.com/apache/datafusion/issues/24438#issuecomment-5424270946

   > We now see the **core idea**: the external system can indicate that data 
is unsorted but non‑overlapping. This is **similar to other metadata 
properties** (e.g., sort order) that come from the external system.
   
   Yes, I think is likely a common pattern (and the use case you describe of 
"more partitions than cores" certainly happens for other users  -- like we have 
it at Influx for example
   
   Maybe that is the usecase we can highlight -- "supporting analytics over 
large amounts of pre-partitioned data" 🤔  It sounds pretty neat and not 
something that I am aware has been written about before


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