UI Builder - how to use sys_attachment table in Data resource - Aggregation Query

Marcin20
Giga Guru

Hi,

 

I am trying to create a Data resource - Aggregation Query to get the number of attachments related to a given record.

However, I cannot select the sys_attachment table in the 'Table' field.

Please could you help me how to make this table selectable?

 

Best Regards,

Marcin