Array concat(数组拼接(Array concat))¶
Supported in: Batch, Faster, Streaming
Concatenates the provided arrays into a single array, without de-duplication.
Expression categories: Array
Declared arguments¶
- Expressions: A list of arrays to concatenate.
List\>>
Type variable bounds: T accepts AnyType
Output type: Array\
Examples¶
Example 1: Base case¶
Argument values:
- Expressions: [[ 1, 2, 3 ], [ 4, 5 ]]
Output: [ 1, 2, 3, 4, 5 ]
Example 2: Base case¶
Argument values:
- Expressions: [[ 1, 2, 3 ], [ 3, 4 ], [ 4, 5 ]]
Output: [ 1, 2, 3, 3, 4, 4, 5 ]
Example 3: Base case¶
Argument values:
- Expressions: [[ 1, 2, 3 ], [ 3, 4 ]]
Output: [ 1, 2, 3, 3, 4 ]
Example 4: Null case¶
Argument values:
- Expressions: [
first_array,second_array]
| first_array | second_array | Output |
|---|---|---|
| [ 1, 2 ] | [ 3, 4 ] | [ 1, 2, 3, 4 ] |
| [ 1, 2, 3 ] | null | [ 1, 2, 3 ] |
| null | null | [ ] |
中文翻译¶
数组拼接(Array concat)¶
支持:批处理(Batch)、快速处理(Faster)、流处理(Streaming)
将提供的多个数组合并为一个数组,不进行去重操作。
表达式类别: 数组(Array)
声明的参数¶
- 表达式(Expressions): 待拼接的数组列表。
List\>>
类型变量边界: T 接受任意类型(AnyType)
输出类型: Array\
示例¶
示例 1:基础情况¶
参数值:
- 表达式: [[ 1, 2, 3 ], [ 4, 5 ]]
输出: [ 1, 2, 3, 4, 5 ]
示例 2:基础情况¶
参数值:
- 表达式: [[ 1, 2, 3 ], [ 3, 4 ], [ 4, 5 ]]
输出: [ 1, 2, 3, 3, 4, 4, 5 ]
示例 3:基础情况¶
参数值:
- 表达式: [[ 1, 2, 3 ], [ 3, 4 ]]
输出: [ 1, 2, 3, 3, 4 ]
示例 4:空值情况¶
参数值:
- 表达式: [
first_array,second_array]
| first_array | second_array | 输出 |
|---|---|---|
| [ 1, 2 ] | [ 3, 4 ] | [ 1, 2, 3, 4 ] |
| [ 1, 2, 3 ] | null | [ 1, 2, 3 ] |
| null | null | [ ] |