MySQL could not have support for millisecond precision, depends on the MySQL version
so we just create issues in different seconds in a deterministic way
- Create fewer Issue objects; 2 is as good as 5 for these cases. This
gives us a nice little speed improvement.
- Don't `describe` Symbols.
- Simplify object creation.
- Lessen "mystery guest" antipattern
Paco Guzman