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Data skew in Salesforce refers specifically to the situation where a large number of child records are associated with a single parent record. When there are more than 10,000 child records linked to one parent, this creates an imbalance in the way data is structured and accessed in the system, leading to potential performance issues and contention for that parent record.
Having more than 10,000 child records indicates that a certain parent record is exceptionally popular or heavily utilized, which can severely impact the system's ability to handle operations efficiently. For instance, bulk operations like updates or deletions can become problematic, as the system may struggle with locked records, resulting in slower performance and potential errors.
The other options describe scenarios that do not indicate the same level of data skew. Having fewer than 5,000 child records is generally considered manageable and unlikely to create performance issues. Similarly, having more than 50,000 records in total does not specify a relationship between parents and children; it could be evenly distributed across many parent records. Lastly, evenly distributed child records do not signify skew either; instead, this setup is indicative of a well-structured data model that enhances performance and minimizes contention. Therefore, the defining characteristic of data skew is dealing with the parent record that has