alamb commented on PR #19366:
URL: https://github.com/apache/datafusion/pull/19366#issuecomment-3686879300

   Yes -- thank you @BlakeOrth  -- the more I have been thinking about this PR 
the more I am worried about the behavior of
   
   ```sql
   -- calls list to get th efiles
   create external table foo...
   drop table foo;
   -- reuses the cached file list
   create external table foo ...
   ```
   
   Specifically it seems like most people would expect that calling `create 
external table` would take a while to find the files, etc. Reusing the same 
cached list I think will be pretty confusing
   
   What do you think about keeping the caches table scoped?
   
   We can do it either in this PR or as a follow on?


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