Deep dive into query execution plans, connection pooling, transaction isolation, and storage engines.
Demystifying cost estimates, actual row counts, buffer hits, and nested loop joins to optimize slow queries.
Designing high-throughput database topologies with asynchronous replication and transaction pooling.
Understanding Read Committed, Repeatable Read, Serializable, and avoiding deadlocks with SELECT FOR UPDATE.
Choosing the optimal index type for JSONB containment, full-text search, geospatial queries, and sequential time-series.
Implementing range and hash partitioning, automated partition maintenance, and partition pruning query performance.