lucqui opened a new pull request, #16514:
URL: https://github.com/apache/datafusion/pull/16514

   - Allow DESC as shorthand for DESCRIBE in SQL parser
   - Maintains backward compatibility with existing DESCRIBE syntax
   - Adds test coverage for new DESC alias functionality
   
   ## Which issue does this PR close?
   
   - Closes #16311
   
   ## What changes are proposed in this pull request?
   
   Add support for `DESC` as an alias for the `DESCRIBE` command in SQL parsing.
   
   ## How are these changes tested?
   
   - Added test cases in `describe.slt` 
   - Verified backward compatibility with existing `DESCRIBE` syntax
   - All existing tests continue to pass
   
   ## Are there any user-facing changes?
   
   Yes - users can now use `DESC table_name` as shorthand for `DESCRIBE 
table_name`


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