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?
Este exercício faz parte do curso
Improving Query Performance in PostgreSQL
Exercício interativo prático
Experimente este exercício completando este código de exemplo.
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