Postgres Best Practices

Postgres performance optimization guidelines from Supabase, prioritized by impact.

Categories (Priority Order)

1. Query Performance (Critical)

• Use EXPLAIN ANALYZE to understand query plans
• Add indexes on frequently queried columns (WHERE, JOIN, ORDER BY)
• **Avoid SELECT *** - specify only needed columns
• Use LIMIT for large result sets
• Optimize JOINs - ensure foreign keys are indexed
• Use prepared statements (Supabase client does this automatically)
• Batch operations when possible

2. Connection Management (Critical)