Database Performance
Resolving PostgreSQL Lock Contention: A pg_locks Deep Dive
PostgreSQL lock contention resolved: read pg_locks correctly, trace blocking chains, fix deadlocks, and design DDL that never queues production.
[...] PostgreSQL Locks
MinervaDB
Key Management in PostgreSQL: Why Encryption Depends on It
Key management in PostgreSQL has quietly moved from a "nice to have" to a hard requirement for most deployments. Data-at-rest encryption is now a baseline expectation, yet encryption alone rarely tells the full story. The [...]
Data Strategy
PostgreSQL Checkpoint Tuning: Eliminating I/O Spikes and Recovery Risk
Default PostgreSQL checkpoint settings create latency spikes, inflate WAL volume, and put crash recovery at risk. This MinervaDB guide walks through every parameter, the new pg_stat_checkpointer view, and reference configurations for OLTP, write-heavy, and analytical workloads on PostgreSQL 16 and 17.
MinervaDB
PostgreSQL Indexing Myths
PostgreSQL Indexing Myths – Just because you’re getting an index scan in PostgreSQL, doesn’t mean you can’t do better! Understanding Index Scans: The Starting Point, Not the Destination When you see that your PostgreSQL query […]
DBA
Mitigating LWLock Contention in PostgreSQL
Mitigating LWLock Contention in PostgreSQL: Optimizing Fast-Path Locking, Partition Pruning, and Index Strategy for High-Concurrency Workloads Improving PostgreSQL performance under lock manager contention necessitates a detailed understanding of Lightweight Locks and fast-path locking behavior, followed […]
DBA
PostgreSQL “Current Transaction is Aborted” Error: Complete Guide to Resolution
PostgreSQL Current Transaction is Aborted Error: Complete Guide to Resolution PostgreSQL’s “ERROR: current transaction is aborted, commands ignored until end of transaction block” is one of the most common yet misunderstood errors developers encounter. This […]
DBA
PostgreSQL ALTER TABLE ADD COLUMN: Hidden Dangers and Production Pitfalls
PostgreSQL ALTER TABLE ADD COLUMN: Hidden Dangers and Production Pitfalls When working with PostgreSQL in production environments, seemingly simple DDL operations can have unexpected consequences. The ALTER TABLE ... ADD COLUMNstatement, while appearing straightforward, carries [...]
DBA
Bloom Indexes in PostgreSQL: A Complete Guide for Database Optimization
Bloom Indexes in PostgreSQL: A Complete Guide for Database Optimization PostgreSQL's extensive indexing capabilities make it one of the most powerful relational databases available today. Among its various index types, Bloom indexes offer a unique [...]
DBA
PostgreSQL Query Performance with EXPLAIN ANALYZE: A Practical Guide
How to Use EXPLAIN ANALYZE in PostgreSQL for Query Performance Optimization and to Optimize PostgreSQL Query Performance with EXPLAIN ANALYZE When your PostgreSQL queries run slower than expected, identifying the bottleneck becomes crucial for database […]
Data Warehousing
A Guide to Building an Active-Active PostgreSQL Cluster
A Guide to Building an Active-Active PostgreSQL Cluster Introduction Database engineers face one of their most challenging tasks today: ensuring continuous data accessibility to meet stringent high-availability requirements. While application-level redundancy through geographically distributed load […]