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Answer: By cleaning up older, unnecessary files after a retention period.
The VACUUM command in Delta Lake efficiently manages storage by removing files that are no longer needed after a specified retention period. This action helps in optimizing storage space without compromising the integrity or availability of data for queries that may require access to historical data within the retention period. It does not encrypt or immediately remove records but focuses on the cleanup of outdated file versions.
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What is the primary function of the VACUUM command in Delta Lake tables?
A
By encrypting deleted records for security purposes.
B
By cleaning up older, unnecessary files after a retention period.
C
By marking deleted records as inactive for immediate purging.
D
By immediately removing all deleted records from the table.
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