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Question 469 - COF-C02 discussion

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Which Snowflake mechanism is used to limit the number of micro-partitions scanned by a query?

A.
Caching
Answers
A.
Caching
B.
Cluster depth
Answers
B.
Cluster depth
C.
Query pruning
Answers
C.
Query pruning
D.
Retrieval optimization
Answers
D.
Retrieval optimization
Suggested answer: C

Explanation:

Query pruning in Snowflake is the mechanism used to limit the number of micro-partitions scanned by a query. By analyzing the filters and conditions applied in a query, Snowflake can skip over micro-partitions that do not contain relevant data, thereby reducing the amount of data processed and improving query performance. This technique is particularly effective for large datasets and is a key component of Snowflake's performance optimization features.

References:

Snowflake Documentation: Query Performance Optimization

asked 23/09/2024
Coleman Owie
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