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Question 418 - COF-C02 discussion

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What value provides information about disk usage for operations where intermediate results do not fit in memory in a Query Profile?

A.
IO
Answers
A.
IO
B.
Network
Answers
B.
Network
C.
Pruning
Answers
C.
Pruning
D.
Spilling
Answers
D.
Spilling
Suggested answer: D

Explanation:

In Snowflake, when a query execution requires more memory than what is available, Snowflake handles these situations by spilling the intermediate results to disk. This process is known as 'spilling.' The Query Profile in Snowflake includes a metric that helps users identify when and how much data spilling occurs during the execution of a query. This information is crucial for optimizing queries as excessive spilling can significantly slow down query performance. The value that provides this information about disk usage due to intermediate results not fitting in memory is appropriately labeled as 'Spilling' in the Query Profile.

References:

Snowflake Documentation on Query Profile and Performance: This section explains the various components of the query profile, including the spilling metric, which indicates disk usage for operations where intermediate results exceed available memory.

asked 23/09/2024
charles ratchagaraj
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