The mapping template language(?) is frustrating to do anything in though. Its documentation is somewhat hidden / distributed, especially any special variables /

The mapping template language(?) is frustrating to do anything in though. Its documentation is somewhat hidden / distributed, especially any special variables / util functions, and suffers from limitations like the foreach operator being limited to 1000 iterations. Unless you're literally returning entire database objects (unprocessed, including all the type info) or something similar, it's pretty limited.