A Data Engineer is investigating a query that is taking a long time to return. The Query Profile shows the following: What step should the Engineer take to increase the query performance?

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Performance Optimization

Question

A Data Engineer is investigating a query that is taking a long time to return. The Query Profile shows the following:

What step should the Engineer take to increase the query performance?

Exhibit

Options

AAdd additional virtual warehouses.
BIncrease the size of the virtual warehouse.
CRewrite the query using Common Table Expressions (CTEs).
DChange the order of the joins and start with smaller tables first.

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Topics

#Query performance#Virtual warehouses#Performance tuning#Warehouse sizing

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