Forum Discussion
Ben-Dev
Helper II
4 years agoTable.View - Handling NestedJoin + Expand
Hello, I'm trying to build a Table.View that handles a Table.NestedJoin + Table.ExpandTableColumn sequence of operations. let
// returns a table that includes column "RelationshipColum...
- 4 years ago
This maps to:
- Table RenameColumns (if join columns have the same name)
- Table.Join
- Table.SelectColumns (if join columns have the same name)
Note: A nested join using left outer will not result in any calls to the connector. It simply adds a virtual table column waiting to be expanded. Other join types will break folding, performing an expand column afterwards will unbreak folding.
lbendlin
Super User
4 years agoMay I interest you in this blog post
Also, you may want to consider this excellent primer on M plumbing.
Power Query M Primer (Part 12): Tables—Table Think I | Ben Gribaudo