This gem runs in .
Overview
Transforms one or more column names or values by using expressions and/or functions. It’s useful when we need to extract only the required columns or make changes column-wise.Parameters
| Parameter | Description | Required |
|---|---|---|
| Model | Input Source on which changes are required | True |
| Target column | Output column name | False |
| Expression | Expression to compute target column | Required if a Target column is present |
If no columns are selected, then all columns are passed through to the output.