Top N

These conditions keep the rows of the result that rank highest or lowest.

Write them in QUALIFY, which filters the result after the query groups it.

Function	What it does
`KATER__IS_IN_TOP`	True where the value ranks in the top count of the query’s rows, ties included.
`KATER__IS_IN_BOTTOM`	True where the value ranks in the bottom count of the query’s rows, ties included.