Answer-first summary for fast verification
Answer: It optimizes data layout to minimize file scans during queries.
Z-ordering is a strategic data organization technique in Delta Lake that clusters related data within the same files. This method is especially effective for queries with filters, as it reduces the volume of data scanned, thereby enhancing query efficiency. The primary advantage of Z-ordering lies in its ability to streamline data retrieval by aligning the data's physical arrangement with typical query patterns, rather than focusing on encryption or table size expansion.
Author: LeetQuiz Editorial Team
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What makes Z-ordering a valuable feature for Delta Lake tables?
A
It randomizes file organization to boost query speed.
B
It enhances data security through encryption.
C
It optimizes data layout to minimize file scans during queries.
D
It expands the table size to improve performance.
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