ARRAY_REVERSE_SORT
Returns the elements of the input array in descending order.
If the argument <function>
is provided, the sorting order is determined by the result of applying <function>
on each element of the array.
Syntax
ARRAY_REVERSE_SORT([<function>,] <array>)
Parameters
Parameter | Description | Supported input type |
---|---|---|
<function> | An optional function to be used to determine the sort order. | Any lambda function that takes the elements of <array> as input |
<array> | The array to be sorted. | Any array |
Return Type
ARRAY
of the same type as the input array
Example
SELECT
ARRAY_REVERSE_SORT([ 4, 1, 3, 2 ]);
Returns: [4,3,2,1]
In this example below, the modulus operator is used to calculate the remainder on any odd numbers. Therefore ARRAY_REVERSE_SORT
puts the lower (even) numbers last in the results.
SELECT
ARRAY_REVERSE_SORT(x -> x % 2, [ 4, 1, 3, 2 ]);
Returns: [1,3,4,2]