2.64.4.1 Aggregate Function: Sum
The following are the arguments, types, and specification of the Sum aggregate function.
Function |
Arguments |
Type |
Specification |
---|---|---|---|
Sum |
Return |
* |
The sum of the non-null values of the items. Return type is the same as the Items. |
Items |
The set of items to sum. |
The value of the Items argument MUST NOT be a literal set, that is, the Items argument MUST NOT be a Literal element with a Literal.Values child element.