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Question 469 - SnowPro Core discussion

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

A.

Caching

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A.

Caching

B.

Cluster depth

Answers
B.

Cluster depth

C.

Query pruning

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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.

Snowflake Documentation: Query Performance Optimization

asked 29/10/2024
matteo vadagnini
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