Yang, Tong
3f5759eed2
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com> Co-authored-by: Yang, Tong <yangtong2@huawei.com> Co-committed-by: Yang, Tong <yangtong2@huawei.com>
8.9 KiB
Concat Fields
Overview
The Concat Fields operator concatenates existing fields by using delimiters to generate new fields.
Input and Output
- Input: fields to be concatenated
- Output: new fields
Parameter Description
Parameter |
Description |
Type |
Mandatory |
Default Value |
|---|---|---|---|---|
Output field name |
Name of a field generated after concatenation. |
string |
Yes |
None |
Delimiter |
Concatenation character. The value can be blank. |
string |
No |
Empty string |
Fields to be merged |
Names of fields to be concatenated. field name must be set to the names of fields generated in the previous conversion step. Multiple field names can be added. |
map |
Yes |
None |
Data Processing Rule
- Use delimiters to concatenate the fields specified by Fields to be merged in order and assign the output to Output field name.
- If the value of a field is null, the value is changed to an empty string and then concatenated with other field values.
Example
Use the CSV File Input operator to generate fields A, B, and C.
The following figure shows the source file.
Configure the Concat Fields operator, set Delimiter to blank space, and generate field D.
After concatenation, fields A, B, C, and D are generated, as shown in the following figure.
