SUMMARY: XTIVIA modernized its 30-year-old Virtual-DBA platform by migrating from IBM Informix to a cost-effective, cloud-optimized PostgreSQL/TimescaleDB. Table of contentsSUMMARY:Why PostgreSQL is the Future of Enterprise DataThe "War Story" Perspective: From...
SUMMARY: XTIVIA explores the complex reality of active-active PostgreSQL replication, evaluating modern tools such as EDB PGD and AWS pgactive to help organizations determine whether their high-availability requirements truly justify the added operational complexity....
SUMMARY: PostgreSQL utilizes TOAST (The Oversized-Attribute Storage Technique) to efficiently store large column values, though this mechanism can trigger performance-degrading disk spills during complex queries if not properly managed. TOAST automatically compresses...
Summary pgbench, PostgreSQL’s built-in benchmarking tool, enables organizations to accurately measure the impact of hardware upgrades by simulating realistic workloads to compare transactions per second (TPS) and latency before and after infrastructure changes....
Summary pg_createcluster provides a superior method for initializing PostgreSQL on Ubuntu compared to the traditional initdb command by automating critical system integrations and establishing a standardized directory structure that minimizes manual configuration...
Summary The pg_stat_statements extension is the definitive tool for PostgreSQL observability, enabling database administrators to pinpoint performance bottlenecks by aggregating detailed execution statistics—such as CPU usage, I/O latency, and query frequency—for...
Summary The PostgreSQL ANALYZE command is the fundamental mechanism that collects statistical data about table contents, enabling the query planner to make accurate cost estimates for efficient and optimal query execution. Table of contentsSummaryIntroductionWhat...
SUMMARY: PostgreSQL database administrators must avoid using the VACUUM FULL command in live environments because its exclusive locking mechanism causes unacceptable service downtime, necessitating the use of safer alternatives like the pg_repack extension or a...
SUMMARY: The PostgreSQL "system ID mismatch" error, which acts as a fundamental safeguard to ensure data integrity, commonly arises when restoring backups across disparate environments using tools such as pgBackRest or Patroni, requiring precise cleanup of metadata or...
SUMMARY: Cloud-managed PostgreSQL offers reliability and scalability. However, organizations frequently fall into the trap of reactive scaling, leading to escalating, unsustainable costs. XTIVIA’s DBA experts resolve this by focusing on proactive optimization to...