fix column names that are not stringed in tables #6873
                
     Merged
            
            
          
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📝 Summary
Fixes #6861.
Couldn't write a test because they pass regardless of this fix.
sqlachemy has a
column_nametype where the column name is an object instead of string.this change forces it to be a string.
original column type

fixed

🔍 Description of Changes
📋 Checklist