code: def column_preview(table_name, col_name):
      
      col = orca.get_table(table_name).get_column(col_name).head(10)
  
      return (
          col.to_json(orient='split', date_format='iso'),
          200,
          {'Content-Type': 'application/json'})
docs: Return the first ten elements of a column as JSON in Pandas'
      "split" format.