I'd like a result like last column in the picture (Full Hierarchy).
I can do that creating multiple support columns. But I'm almost sure that it's possible to do that using recursive lambda.
I made some tentatives, but no success.
Can anyone help on that? Thanks!
col A = child info
col B - parent info
col c to k = xlookup to search the parent of the previous parent
col L = join results into one column ... starting from the top level to the row child
Child Parent
1578123
10000176 1578123
10000623 10000176
1584885 10000623
1606217 1584885
44000026 10000623
81003755 10000623
1579066 10000176
1603212 1579066
81014694 1603212
1603645 1579066
59000184 1579066
81011826 59000184
81017364 59000184
81014130 1579066
81020541 1579066
81020078 81020541
Using REDUCE:
="> "&IF([@Parent]="",[@Child],TEXTJOIN(" > ",TRUE,REDUCE([@Parent],SEQUENCE(10),LAMBDA(x,y,VSTACK(XLOOKUP(TAKE(x,1),[Child],[Parent],""),x)))))
NOTE: This does make an assumption that there are no more than 10 parents. If that is too small change the 10
to what you feel comfortable.
To show that it works with text: