ARRAY_SUM

Returns the sum of elements of <array>. If the argument <function> is provided, the values of the array elements are converted by this function before summing.

Syntax

ARRAY_SUM([<function>,] <array>)

Parameters

Parameter	Description	Supported input types
`<function>`	A Lambda function with an arithmetic function used to modify the array elements.	Any function
`<array>`	The array to be used to calculate the function.	Any array of numeric types

Return Type

DOUBLE PRECISION

Example

This example below uses a function to first add 1 to all elements before calculating the sum:

SELECT
	ARRAY_SUM(x -> x + 1, [ 4, 1, 3, 2 ]) AS levels;

Returns: 14

In this example below, no function to change the array elements is given.

SELECT
	ARRAY_SUM([ 4, 1, 3, 2 ]) AS levels;

Returns: 10