| int | -2^31 (-2,147,483,648) 到 2^31-1 (2,147,483,647) | 4个字节 |
| bigint | -2^63 (-9,223,372,036,854,775,808) 到 2^63-1 (9,223,372,036,854,775,807) | 8个字节 |
| smallint | -2^15 (-32,768) 到 2^15-1 (32,767) | 2个字节 |
| tinyint | 0 到 255 | 1个字节 |
| int | -2^31 (-2,147,483,648) 到 2^31-1 (2,147,483,647) | 4个字节 |
| bigint | -2^63 (-9,223,372,036,854,775,808) 到 2^63-1 (9,223,372,036,854,775,807) | 8个字节 |
| smallint | -2^15 (-32,768) 到 2^15-1 (32,767) | 2个字节 |
| tinyint | 0 到 255 | 1个字节 |
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