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yinbo3 merged 1 commit into from
Dec 18, 2025
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docs: supports binary data type #270

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20 changes: 13 additions & 7 deletions zh_CN/sql-reference/data-type.md
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Expand Up @@ -7,23 +7,23 @@ Datalayers SQL 提供丰富的数据类型系统，支持数值、时间、布
## Numeric Types

| 类型名称 | 别名 | 备注 |
| ------------- |------------------------------------- |--------------------------------------------------- |
| ------------- |------------------------------------- |-----------------------------------------------|
| INT8 | TINYINT | 单字节整数，范围[-128, 127] |
| INT16 | SMALLINT | 双字节整数，范围[-32768, 32767] |
| INT32 | INT | 四字节整数，范围[-2^31, 2^31-1] |
| INT64 | BIGINT | 八字节整数，范围[-2^63, 2^63-1] |
| UINT8 | TINYINT UNSIGNED | 无符号单字节整数，范围[0, 255] |
| UINT16 | SMALLINT UNSIGNED | 无符号双字节整数，范围[0, 2^16-1] |
| UINT32 | INT UNSIGNED | 无符号四字节整数，范围[0, 2^32-1] |
| UINT64 | BIGINT UNSIGNED | 无符号八字节整数，范围[0, 2^64-1] |
| REAL | FLOAT | 单精度浮点数（四字节） |
| DOUBLE | - | 双精度浮点数（八字节） |
| UINT32 | INT UNSIGNED | 无符号四字节整数，范围[0, 2^32-1] |
| UINT64 | BIGINT UNSIGNED | 无符号八字节整数，范围[0, 2^64-1] |
| REAL | FLOAT | 单精度浮点数（四字节） |
| DOUBLE | - | 双精度浮点数（八字节） |

## Date/Time Types

| Name | Description |
| ------------- |----------------------------------------------------------------------------------- |
| TIMESTAMP | Int64, Timestamp(precision), 可选值为0、3、6、9， 代表秒、毫秒、微秒、纳秒, 缺省值: 毫秒 |
| TIMESTAMP | Int64, Timestamp(precision), 可选值为0、3、6、9， 代表秒、毫秒、微秒、纳秒, 缺省值: 毫秒 |

## Boolean Types

Expand All @@ -41,4 +41,10 @@ Datalayers SQL 提供丰富的数据类型系统，支持数值、时间、布

| Name | Description |
| ------------- |---------------------------------------------------------------------------------- |
| VECTOR | VECTOR(dim)，`dim` 代表向量的维度，取值范围为 [1, 16383] |
| VECTOR | VECTOR(dim)，`dim` 代表向量的维度，取值范围为 [1, 16383] |

## Binary Type

| Name | Description |
| ------------- |---------------------------------------------------------------------------------- |
| BINARY | BINARY 数据类型。注：最大长度支持4MB |