parameters: (col)
return_statement: return col.endswith('day')
docstring: a rough way of differentiating a timestamp column used solely 
             for date. Time portion is set to 00:00:00 usually
docstring_summary: a rough way of differentiating a timestamp column used solely 
             for date. Time portion is set to 00:00:00 usually
docstring_tokens: a rough way of differentiating a timestamp column used solely for date . Time portion is set to 00 : 00 : 00 usually
function: def is_day_column(col):
          '''a rough way of differentiating a timestamp column used solely 
             for date. Time portion is set to 00:00:00 usually'''
          return col.endswith('day')
function_tokens: def is_day_column ( col ) : return col . endswith ( 'day' )