| Integer | an integer |
|---|---|
| String(size) | a string with a maximum length (optional in some database, e.g. PostgreSQL) |
| Text | some longer unicode text |
| DateTime | date and time expressed as Python datetime object |
| Float | stores floating point values |
| Boolean | stores a boolean value |
| PickleType | stores a pickled Python object |
| LargeBinary | stores large arbitrary binary data |
Calling db.String() with no max number of character passes into it, is the same as declaring a column with data type VARCHAR.