[Solved] What does the EXPLAIN ANALYZE command do in PostgreSQL? — Ans: Runs the query and shows the actual execution plan with timing details | PostgreSQL

PostgreSQL - Set Operations and Advanced Queries

What does the EXPLAIN ANALYZE command do in PostgreSQL?

ARuns the query and shows the actual execution plan with timing details

BOnly shows the estimated query plan without running the query

CDeletes the query plan cache

DOptimizes the query automatically

Step-by-Step Solution

Solution:

Step 1: Understand EXPLAIN vs EXPLAIN ANALYZE
EXPLAIN shows the estimated plan without running the query, while EXPLAIN ANALYZE runs the query and shows actual times.
Step 2: Identify what EXPLAIN ANALYZE outputs
It outputs the real execution plan with timing and row count details after running the query.
Final Answer:
Runs the query and shows the actual execution plan with timing details -> Option A
Quick Check:
EXPLAIN ANALYZE = Runs query and shows real plan [OK]

Quick Trick: EXPLAIN ANALYZE runs query and shows real timings [OK]

Common Mistakes:

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What does the EXPLAIN ANALYZE command do in PostgreSQL?