LOCAL
      table_rep : table_representation;
      symbol_rep_rel_set : SET  OF  symbol_representation_relationship;
      mapped_item_set : SET  OF  mapped_item;
      table_record_rep_set : SET OF table_record_representation := [];
    END_LOCAL;
 
    table_rep := table\styled_item.item\mapped_item.mapping_source.
      mapped_representation;
    mapped_item_set := QUERY(item <* table_rep.items |
                         ('REPRESENTATION_SCHEMA.MAPPED_ITEM' IN
                          TYPEOF(item))
                                   AND
                         ('PRESENTATION_DEFINITION_SCHEMA.'+
                          'TABLE_RECORD_REPRESENTATION' IN
                           TYPEOF(item\mapped_item.mapping_source.
                                      mapped_representation ))
                       );
 
    REPEAT  i := 1 TO  HIINDEX(mapped_item_set);
      table_record_rep_set := table_record_rep_set +
             mapped_item_set[i].mapping_source.mapped_representation;
    END_REPEAT;
 
    symbol_rep_rel_set := bag_to_set (USEDIN(table_rep, 
                                 'REPRESENTATION_SCHEMA.'+
                                 'REPRESENTATION_RELATIONSHIP.REP_1'));
 
    REPEAT i := 1 TO HIINDEX(symbol_rep_rel_set);
       table_record_rep_set := table_record_rep_set +
                symbol_rep_rel_set[i]\representation_relationship.rep_2;
    END_REPEAT;
 
    IF SIZEOF(QUERY( table_record_rep <* table_record_rep_set |
                (SIZEOF(QUERY( rep_rel <* USEDIN(table_record_rep,
                              'REPRESENTATION_SCHEMA.'+
                              'REPRESENTATION_RELATIONSHIP.REP_1') |
                         ('PRESENTATION_DEFINITION_SCHEMA.' +
                         'SYMBOL_REPRESENTATION_RELATIONSHIP' IN TYPEOF(rep_rel)) AND  
                         (rep_rel.rep_2 :=: field)
                         )) > 0)
                         OR
                (SIZEOF(QUERY(item <* table_record_rep.items |
                          ('REPRESENTATION_SCHEMA.MAPPED_ITEM' IN
                           TYPEOF(item))
                                   AND
                          (field :=: item\mapped_item.mapping_source.
                                      mapped_representation )
                           )) > 0)
               )) = 0 THEN
      RETURN(FALSE);
    END_IF;
 
    RETURN(TRUE);