Code AnalysisIntermediate 45s

Slow query EXPLAIN

What does 'Index Scan' vs 'Seq Scan' mean?

Starter code

EXPLAIN SELECT * FROM users WHERE email = 'test@test.com';
# Output: Index Scan on users_email_idx

Think you can answer under pressure?

Get matched and answer live questions in 3-minute 1v1 battles. Elo ranking, badge tiers and bragging rights on the line.