Please add the Joins based on multiple fields tool. It will be a tool where you will have the main table and the join table, each with the options to select primary, secondary, tertiary, and so on field options so that the primary field from the main table will match the primary field form the joint table and so on. This will eliminate the need to filter values prior to a join when multiple columns are needed.
A good example is when you have a main column with three categories, and a second column with subcategories, bot those subcategories can be repeated between main categories. Let say you have a main column with building names and a second column with apartment numbers. An apartment number 5B can exist in more than one building. But you want to update only apartment 5B from one specific building. That's where the Joins based on multiple fields tool will filter first the building names and second the apartment numbers.
