Given:
A | B |______|____|key1 | 3 |______|____|key2 | 5 |______|____|key3 | 7 |______|____|key2 | 9 |______|____|Get the output:
D | E |______|____|key1 | 3 |______|____|key2 | 14 |______|____|key3 | 7 |______|____|I'm trying to use a combination of unique and filter but to no avail.