Column Relationship Recommendations
Modeler can make suggestions of possible column relationships.
When you click on a column on the left, Modeler gives suggestions for possible joins on the right. These suggestions are based on data types and not on the actual data in the columns. If you select one that doesn't match, Modeler warns you and you can delete it.
To make a join, drag the join line from a column on the left to the corresponding one on the right.