What does this icon in Field List mean?

[SenHarada]

I opened a sample file and found the icon below next to "DM". What does this mean? I searched help pages, but I couldn't find an icon explanation.

[datamodel]

I found another reference to this question. It appears to be an old icon from Excel imports... unique identifier of a table.

https://community.powerbi.com/t5/Desktop/Field-list-question/td-p/17312

[Anonymous · Accepted solution]

Hi @SenHarada,

It means this column is form one field of original properties.(for e.g. original column has multiple properties fields, such as value field, key field, name field...)

Regards,

Xiaoxin Sheng

[datamodel]

I still don't understand 🙂 Could you explain? Where are those properties?

[SenHarada]

Thanks! Now I understand.