anchor.diff:  			key = KeyDefinition,
   			column_mapper = Mapper,
   			comparator = Comp,
  +			type = Type,
  +			data_model = DataModel,
   			options = Options,
   			shards = Shards,
   			distributed = Dist
  
positive.code: 	    {ok, [{name, Name},
  		  {key, KeyDefinition},
  		  {column_mapper, Mapper},
  		  {comparator, Comp} | Rest]};
  	[] ->
  	    {error, "no_table"}
      end.
  
negative.code: 			key = KeyDefinition,
  			column_mapper = Mapper,
  			comparator = Comp,
  			type = Type,
  			data_model = DataModel,
  			options = Options,
  			shards = Shards,
  