Why PostgreSQL EXPLAIN ANALYZE Can Mislead You — and What to Use Instead

EXPLAIN ANALYZE is the standard tool for understanding how PostgreSQL runs a query. It shows the chosen plan, estimated and actual row counts, and execution time. For most engineers, it is the first stop when a query is slow. It is also frequently misread. A query plan can look clean in EXPLAIN ANALYZE and still be slow in production. A rewritten query can show a much lower cost in development and behave identically when deployed. The output is not wrong — but it answers a narrower question than