What key aspects do you analyze in the output of the EXPLAIN ANALYZE command to evaluate query performance in a database?

When analyzing the output of the EXPLAIN ANALYZE command to evaluate query performance in a database, I pay attention to the following key aspects:

• Query execution plan: what operations are performed (e.g., sequential scan, index search, table join).
• Time taken for each operation: how long each part of the query takes, which helps identify bottlenecks.
• Number of processed rows: how many rows were read and returned at each stage.
• Index usage: checking whether indexes are used to speed up searches.
• Parallelism: if applicable, whether parallel execution is used.

This helps understand how to optimize the query, for example, by adding indexes or rewriting it for more efficient execution.