Schema: Add foreign key constraints
See original GitHub issueshould be in a format like
table.foreign('user_id').references('id').on('users')
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- Created 4 years ago
- Comments:8 (8 by maintainers)
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primary keys and foreign keys are never negative so it makes sense to make the columns unsigned.
For others following, with numbers you technically use the first bit to check if the number is negative or positive. When you make it unsigned you tell the database to use the left bit to make the number bigger. In this case you lose the ability to make the column have a negative value but you gain the ability to make the number larger (since now you have an extra bit to work with)