How to Read PostgreSQL EXPLAIN ANALYZE (With Examples)
By Sharon Ben-Moshe · August 16, 2026 · 1 min read
Sharon Ben-Moshe is the founder of sqlfmt, a browser-based SQL formatter and validator with misspelled-keyword suggestions across PostgreSQL, MySQL, SQLite, SQL Server, and BigQuery.
Learn to read PostgreSQL EXPLAIN ANALYZE: estimated versus actual rows, scan types, safe use with writes, and a repeatable tuning workflow.
Quick answer
EXPLAIN shows PostgreSQL's planned execution path; EXPLAIN ANALYZE runs the statement and adds actual timing and row information. Start by comparing estimated and actual rows, then inspect the work performed by each plan node. Never run EXPLAIN ANALYZE on a write without understanding its side effects.
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