powerbi - What is the default join output of power BI relationship?

Question

When there is a 1:1 relation then it appears to be like an inner join.

When there is 1:M relation then it appears to be like an inner join.

1. When there is M:M relation then what the the type of join?

I am reading that power bi join happens like a left outer join irrespective of either it is 1:1 or 1:M or M:M

Is this true and can it be changed to inner join?

2. Does this mean that in case of M:M we will have duplicate rows for example if there is 1 row in left table and 10 rows in right table then there will be total 10 rows output. And similarly when there are 10 rows in left tvale and 1 row in right table then there will be 10 rows output. And if there are 5 rows in left table and 5 rows in right table there will be 25 rows output?

question from:https://stackoverflow.com/questions/66064016/what-is-the-default-join-output-of-power-bi-relationship

Answer 1

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