phillipleblanc opened a new issue, #10624:
URL: https://github.com/apache/datafusion/issues/10624

   ### Describe the bug
   
   When unparsing LogicalPlans back to SQL statements for the MySQL dialect, 
any plan that includes a `Sort` node will produce a SQL statement that looks 
like:
   ```
   SELECT "ta"."j1_id" FROM "j1" AS "ta" ORDER BY "ta"."j1_id" ASC NULLS LAST 
LIMIT 10
                                                                   ^--------^   
           
   ```
   
   The `NULLS LAST` causes issues when run against a MySQL server, as it 
doesn't recognize that syntax.
   
   ### To Reproduce
   
   Create an Unparser with a MySQL dialect, unparse any plan that includes a 
Sort node and observe that the SQL string generated includes the NULLS 
FIRST/LAST clause.
   
   ### Expected behavior
   
   The MySQL dialect should omit writing out the NULLS LAST clause, since its 
not a supported feature of the DB. 
   
   ### Additional context
   
   _No response_


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