🔗 EXPLAIN's other superpowers

Did you know that the EXPLAIN command in PostgreSQL has several lesser-known options that can significantly enhance your troubleshooting capabilities? The BUFFERS option shows where your data was sourced—whether from shared buffers or disk—helping you diagnose cache issues or memory constraints. You can then track memory usage during query planning with MEMORY. For write-heavy operations, the WAL option reveals detailed logging metrics, useful for bulk loads or updates. Want to replicate your environment? The SETTINGS option outlines your configuration settings, while the VERBOSE flag provides an expanded view of the query planner's operations. Combine these options, like EXPLAIN (ANALYZE, BUFFERS, WAL, SETTINGS), for a comprehensive picture of your query execution and database health.