Thanks for your suggestion.
Effectively, I've make an information table, browsing the data model, using the functions NoOfTables() and NoOfFields().
It's not very perfect, because it may have some errors, as a fieldName wish has been renamed; but I can't do better.
LOAD '' as tableName, '' as fieldName, '' as isQualified
for i = 0 to NoOfTables() - 1
for j = 1 to NoOfFields(TableName($(i)))
let vTableName = TableName($(i));
let vFieldName = FieldName($(j), TableName($(i)));
let vIsQualified = if (SubField(vFieldName, '.', 1) = vTableName, true(), false());
LOAD '$(vTableName)' as tableName, '$(vFieldName)' as fieldName, '$(vIsQualified)' as isQualified