Rules for automatic recognition of relationships

[kjksigma]

Hi community

I have Power BI Desktop connected to Google BigQuery using "DirectQuery".

Google BigQuery doesn't support relations.

Power BI does have some automatic recognition of relationships, but I can't manage to get it working even though I make some pretty clear column names.

E.g. dim_customers and dim_customer_contacts have the following keys:

dim_customers.customer_id

dim_customer_contacts.customer_id

This relation is not recognized.

I can create it manually, but that is not what I'm going for.

What are the table/column naming convention for Power BI Desktop to automatically recognize relations?

[v-xuding-msft · Accepted solution]

Hi @kjksigma ,

According to my experience, it is better to manage relationships manually.  If Power BI Desktop cannot determine with a high level of confidence there is a match, it does not automatically create the relationship or it create incorrectly.  

There is the document you can have a good look at:

Create and manage relationships in Power BI Desktop

Best Regards,

Xue Ding

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly