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What is the correct statement about the retention policy of Delta Lake's Change Data Feed (CDF)?
What is the correct statement about the retention policy of Delta Lake's Change Data Feed (CDF)?
Real Exam
Explanation:
Databricks tracks changes for UPDATE, DELETE, and MERGE operations in the _change_data folder within the table directory. These files adhere to the table's retention policy. Consequently, executing the VACUUM command will also remove change data feed data. For more details, refer to the documentation: Delta Change Data Feed.