FILL_WITH_CUSTOM
Returns a column with missing data replaced by a specific value.
Parameters
- 
                        sourceColumn– The name of an existing column.
- 
                        columnDataType– The data type for the column. This type must bedate,number,boolean,unsupported,string, ortimestamp.
- 
                        value– The custom value to fill in. The data type must match the value that you choose forcolumnDataType.
Example
{ "RecipeAction": { "Operation": "FILL_WITH_CUSTOM", "Parameters": { "columnDataType": "string", "sourceColumn": "last_name", "value": "No last name provided" } } }