Special Case Grouping
Question:
The cats have decided the correct weight is the same as the 4th lightest cat. All cats shall have this weight. Except in a fit of jealous rage they decide to set the weight of the lightest three to 99.9
Print a list of cats, their weights and their imagined weight
Return: name, weight, imagined_weight
Order by: weight Show Table Schema
Cats:
| name | varchar |
| breed | varchar |
| weight | float |
| color | varchar |
| age | int |
Correct output but can you use 'nth_value'?
Desired output:
| name | weight | imagined_weight |
| Tigger | 3.8 | 99.9 |
| Molly | 4.2 | 99.9 |
| Ashes | 4.5 | 99.9 |
| Charlie | 4.8 | 4.8 |
| Smudge | 4.9 | 4.8 |
| Felix | 5.0 | 4.8 |
| Puss | 5.1 | 4.8 |
| Millie | 5.4 | 4.8 |
| Alfie | 5.5 | 4.8 |
| Misty | 5.7 | 4.8 |
| Oscar | 6.1 | 4.8 |
| Smokey | 6.1 | 4.8 |
select name, weight, coalesce(nth_value(weight, 4) over (order by weight), 99.9) as imagined_weight from cats order by weight