Does OutSystems support composite keys for entities?

OutSystems does not support composite keys for entities, which means that each entity in the OutSystems platform can only have a single unique identifier known as the primary key. This is an important aspect of how data structures are designed within the OutSystems environment, as it simplifies database operations and ensures consistency in how entities are identified and referenced.

While some databases allow the use of composite keys, OutSystems chooses to maintain a straightforward approach by requiring a single primary key for each entity. In practice, developers can work around this limitation by using a unique constraint on multiple columns, but this does not equate to the full functionality of composite keys. Therefore, when considering how to design entities within the OutSystems platform, it is crucial to understand that composite keys are not a supported feature, confirming that the answer is indeed false.