jayzhan-synnada opened a new pull request, #15371:
URL: https://github.com/apache/datafusion/pull/15371

   ## Which issue does this PR close?
   
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   - Closes #.
   
   ## Rationale for this change
   
   DataSink in physical plan blocking us from add trait method that depends on 
`datasource`, moving it to datasource is much more suitable and the role is 
aligned with DataSource
   
   
   After moving DataSink to datasource crate, there is circular dependency 
because datasource imports catalog.
   
   Since we need DataSinkExec for catalog, we revert the dependency in another 
way. And move Session to new crate datafusion-session. catalog and datasource 
will depends on session
   
   catalog -> session
   datasource -> session
   catalog -> datasource
   
   from dependency view, Session can be moved to datasource, but conceptually 
it doesn't fit the role of the crate so move it out along. Also, datasource 
imports catalog for Session only, so revert the dependency isn't an issue.
   
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   ## Are these changes tested?
   
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   ## Are there any user-facing changes?
   
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