[QUESTION] Pivoting a table

[am2222]

Ask your question
Hello, Supposed we have a following table

place|time|key|value
A | t1 |test| 01
A | t2 |test| 02
A | t3 |test| 03
B | t1 |test| 04
C | t2 |test| 05
D | t3 |test| 06
A | t1 |test1| 07
A | t2 |test1| 08
A | t3 |test1| 08
B | t1 |test1| 09
C | t2 |test1| 10
D | t3 |test1| 11

Is there any way to pivot this structure into this form?
place|time|test1|test2
A | t1 | 01|07
A | t2 | 02|08
A | t3 | 03|08
B | t1 | 04|09
C | t2 | 05|10
D | t3 | 06|11
Additional context
I know I can do some joins with having another key but I am wondering if there is any dataframe-js method to do it which has a good performance as well.
Thanks

[am2222]

Maybe this method?
#99