What is the effect of specifying global de-duplication on the primary data source?

Specifying global de-duplication on the primary data source means that the system prioritizes this data source above all others when identifying and eliminating duplicate entries within the dataset. This is significant because the primary data source typically contains the most accurate and comprehensive information available; thus, prioritizing it ensures that duplicates are recognized and managed effectively based on the highest quality data.

In addition to establishing a processing hierarchy, this approach minimizes the risk of overlooking critical information that might exist in secondary sources, which can sometimes include incomplete or outdated entries. By making the primary data source the highest priority, the de-duplication process becomes more efficient and effective, maintaining data integrity and reliability.

Understanding this concept is essential for managing large datasets, as it impacts how data is handled and the overall quality of the results generated from the processing. This prioritization is particularly important in environments where data accuracy is paramount, such as legal or compliance-related data management scenarios.