Struct Mask

This is a composite generator.

Applies selected generators to specific StructFields within a StructType in a Spark database (Databricks and Amazon EMR).

For example, for the following StructType:

root
 |-- firstname: string (nullable = true)
 |-- lastname: string (nullable = true)
 |-- age: integer (nullable = true)
 |-- occupation: string (nullable = true)
 |-- salary: integer (nullable = true)


firstname | lastname | age | occupation | salary
-------------------------------------------------
John      | Smith    | 25  | Teacher    | 45000

To get the value of the occupation field, you would use the expression root.occupation.

Characteristics

Consistency	Determined by the selected sub-generators.
Linking	Determined by the selected sub-generators.
Differential privacy	Determined by the selected sub-generators.
Data-free	Determined by the selected sub-generators.
Allowed for primary keys	No
Allowed for unique columns	No
Uses format-preserving encryption (FPE)	No
Privacy ranking	5
Generator ID (for the API)	StructMaskGenerator

How to configure

Adding a sub-generator

To assign a generator to a path expression:

1. Under Sub-generators, click Add Generator. On the sub-generator configuration panel, the Cell Struct field contains a sample value from the source database. You can use the previous and next icons to page through different values.

2. In the Path Expression field, type the path expression to identify the value to apply the generator to. Matched Struct Values shows the result from the value in Cell Struct.

3. From the Generator Configuration dropdown list, select the generator to apply to the path expression. You cannot select another composite generator.

4. Configure the selected generator. You cannot configure the selected generator to be consistent with another column.

5. To save the configuration and close the add generator panel, click Save.

Managing sub-generators

From the Sub-Generators list:

• To edit a generator assignment, click the edit icon.

• To remove a generator assignment, click the delete icon.

• To move a generator assignment up or down in the list, click the up or down arrow.