PostgreSQL Optimization Index Strategies Reading Query Plans Key things to look for in the plan: - on large tables indicates a missing index - with high row estimates suggests missing join index - without means the sort is happening in memory/disk - vs shows cache efficiency Partitioning Partition tables with more than 10M rows when queries consistently filter on the partition key. JSONB Operations Connection Pooling Use transaction-level pooling for web applications. Session-level pooling for apps that use prepared statements or temp tables. Common Tuning Parameters Anti-Patterns - Creating…