avantgardnerio commented on PR #110:
URL: https://github.com/apache/arrow-ballista/pull/110#issuecomment-1205516505

   Thanks for providing the link @andygrove . If I understand correctly, I 
think I have to agree with this comment: 
https://github.com/rust-lang/api-guidelines/discussions/176#discussioncomment-232635
   
   > no way of discerning that this doc is lifted from the futures crate
   
   Except that it's not just about docs, it's about information loss. Cargo is 
able to maintian a DAG of dependencies and detect conflicts. If I understand 
correctly, if a dependency is re-exported, then this information is lost?
   
   Also, if ballista were to add another important 3rd party dependency that 
followed the same practice (re-exporting their own SQL parser) it would be 
impossible to pass a `sqlparser::ast::Statement` between the two crates in a 
safe way?
   


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