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EXPLAIN parameters

EXPLAIN gives a window into the query plan. It has some optional parameters that provide additional information. You want to try out these optional parameters, focusing on the VERBOSE and ANALYZE parameters.

VERBOSE allows you to see the available columns at each step of the plan. ANALYZE computes actual run times in milliseconds. Which parameter's output do you find most useful?

This exercise is part of the course

Improving Query Performance in PostgreSQL

View Course

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

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SELECT *
FROM country_demos;
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