What determines the type of the output list from aggregates?

The type of the output list from aggregates is determined by the source entities involved in the aggregate operation. When defining an aggregate in OutSystems, you specify one or more source entities from which data will be queried. The aggregate's output will reflect the structure defined by these source entities, including their attributes and data types.

For instance, if you have an aggregate that sources data from a specific entity, the output will be a list of records corresponding to that entity, containing all specified attributes. The output list type is, therefore, directly tied to the entities you select for the aggregate, ensuring that the resulting data aligns with the entity structure used.

While filters can modify the result set by narrowing down which records are included in the output, they do not change the fundamental type of the output list, which remains based on the source entities. Similarly, the sorting method affects the order of the output records but does not alter the type of the output list. Thus, the correct answer fundamentally relates to the original data structure being queried.