What happens if there are conflicts between a new object and the object it is extending?

When a new object extends an existing object in LookML and there are conflicts, the extending object takes precedence and overrides properties in the original object. This allows developers to customize functionality or behavior while leveraging the existing structure and definitions provided by the original object.

In scenarios where there are conflicting definitions, the system applies the rules of inheritance and allows the new object to specify its desired values, effectively replacing the matching properties of the original object. This is particularly useful in Looker, as it promotes code reuse, where developers can build upon existing models without needing to completely redefine everything. It streamlines the development process and enhances maintainability by allowing targeted adjustments only where necessary.

Other choices might suggest alternatives that do not accurately reflect the behavior of LookML's inheritance model. For instance, stating that the new object cannot be created does not align with the extensibility features of LookML, while mentioning that the original object is always preserved overlooks the overriding nature of extending objects. Moreover, suggesting that it results in an error message misrepresents the functionality, as LookML is designed to allow such extensions purposefully.