14.10.2 Type System

Filter expressions are a very simple type system. There are only the following 13 types:

1. integer (can be abbreviated in expressions with int)
2. long
3. float
4. double
5. boolean
6. string
7. date
8. time
9. time with timezone
10. timestamp
11. timestamp with timezone
12. vertex
13. edge

Conversions are only allowed from one numeric type to another numeric type (i.e. integer, float, double, long).

Comparisons require both sides to be of the same (or convertible) type.