feat(schema): improve constraints support #6
Description
Context
Right now, ormshift only supports creating primary keys besides the table columns. To be considered production-ready, it would be a good idea to start supporting other types of constraints.
Requirements
Start supporting more constraint types, improving the schema features and changing the DDL generators.
Table level:
Primary keys(already supported)- Foreign keys
- Unique keys
Column level:
Not null(already supported)- Checks
- Default values