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tyt2y3 merged 4 commits into from
Aug 5, 2026
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Mark u64 as unsupported on SQLite in column-types table #181

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Mark u64 as unsupported on SQLite in column-types table
tyt2y3 Aug 5, 2026
797f550
Mark u64 as unsupported on SQLite (zh-CN)
tyt2y3 Aug 5, 2026
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Use native GFM footnote syntax (EN)
tyt2y3 Aug 5, 2026
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Use native GFM footnote syntax (zh-CN)
tyt2y3 Aug 5, 2026
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4 changes: 3 additions & 1 deletion SeaORM/docs/04-generate-entity/03-column-types.md
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Expand Up @@ -23,12 +23,14 @@ For the mappings of Rust primitive data types:
| `i32` | Integer | integer | int | integer |
| `u32` | Unsigned | integer | int unsigned | N/A |
| `i64` | BigInteger | integer | bigint | bigint |
| `u64` | BigUnsigned | integer | bigint unsigned | N/A |
| `u64` | BigUnsigned | unsupported[^u64-sqlite] | bigint unsigned | N/A |
| `f32` | Float | float | float | real |
| `f64` | Double | double | double | double precision |
| `bool` | Boolean | boolean | bool | bool |
| `Vec<u8>` | Binary | blob | blob | bytea |

[^u64-sqlite]: `u64` is not supported on SQLite. SQLite stores only 64-bit *signed* integers, and the underlying `sqlx` SQLite driver does not encode `u64` (values above `i64::MAX` cannot be represented). Use `i64`, or store large unsigned values as `String` / `Vec<u8>`. See [#1400](https://github.com/SeaQL/sea-orm/issues/1400).

For the mappings of Rust non-primitive data types. You can check [`entity/prelude.rs`](https://github.com/SeaQL/sea-orm/blob/master/src/entity/prelude.rs) for all of the reexported types.

| Rust type | Database Type <br/> ([`ColumnType`](https://docs.rs/sea-orm/2.0.0/sea_orm/entity/enum.ColumnType.html)) | SQLite <br/> datatype | MySQL <br/> datatype | PostgreSQL <br/> datatype |
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4 changes: 3 additions & 1 deletion ...CN/docusaurus-plugin-content-docs/current/04-generate-entity/03-column-types.md
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Expand Up @@ -23,12 +23,14 @@ Rust 基本数据类型的映射：
| `i32` | Integer | integer | int | integer |
| `u32` | Unsigned | integer | int unsigned | N/A |
| `i64` | BigInteger | integer | bigint | bigint |
| `u64` | BigUnsigned | integer | bigint unsigned | N/A |
| `u64` | BigUnsigned | 不支持[^u64-sqlite] | bigint unsigned | N/A |
| `f32` | Float | float | float | real |
| `f64` | Double | double | double | double precision |
| `bool` | Boolean | boolean | bool | bool |
| `Vec<u8>` | Binary | blob | blob | bytea |

[^u64-sqlite]: SQLite 不支持 `u64`。SQLite 仅存储 64 位*有符号*整数，且底层 `sqlx` SQLite 驱动无法编码 `u64`（无法表示大于 `i64::MAX` 的值）。请改用 `i64`，或将较大的无符号值存储为 `String` / `Vec<u8>`。参见 [#1400](https://github.com/SeaQL/sea-orm/issues/1400)。

Rust 非基本数据类型的映射。你可以查看 [`entity/prelude.rs`](https://github.com/SeaQL/sea-orm/blob/master/src/entity/prelude.rs) 了解所有重新导出的类型。

| Rust type | Database Type <br/> ([`ColumnType`](https://docs.rs/sea-orm/2.0.0-rc.25/sea_orm/entity/enum.ColumnType.html)) | SQLite <br/> datatype | MySQL <br/> datatype | PostgreSQL <br/> datatype |
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