Testing whether string escaping is working properly.
Apparently, I might get JPA support for N:1 and 1:1 links for free. I
need to add support for operator precedence to remove extra brackets
though before EclipseLink doesn't seem to handle the extra brackets
properly for N:1 and 1:1 links.
Doing more work on operator precedence in JPQL queries.
Putting more types of data in the test database so that I can experiment
with more types of queries. I also figured out how to fix the multiple
JPA foreign keys as primary keys issue I was having.