Databricks Certified Data Engineer - Associate
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Discuss the importance of inspecting the directory structure of Delta Lake files. Explain how this can aid in performance tuning and data management.
A
Inspecting the directory structure involves using the DESCRIBE DETAIL command to view the partition columns and their values, which is crucial for understanding data distribution and optimizing query performance.
B
Delta Lake does not allow inspection of its directory structure, making it impossible to optimize data storage or query performance.
C
Inspecting the directory structure is done by directly navigating the file system, which provides insights into how data is partitioned and stored, aiding in performance tuning and data management.
D
The directory structure of Delta Lake files is automatically optimized and does not require manual inspection or management.