PostgreSQL EXPLAIN ANALYZE

sql

EXPLAIN (ANALYZE, BUFFERS) SELECT * FROM users WHERE email = 'a@example.com';

Explanation

This is often the first stop for PostgreSQL tuning.

Learn the surrounding workflow

Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.

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Inspect access path and chosen key.

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Check keys examined and docs examined.

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Inspect scans versus indexed searches.

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A quick review checklist after creating an index.