PostgreSQL 18 Archives

Google AlloyDB Architecture, Internals and Performance: 2026 Best Practices Guide

AlloyDB is the one managed PostgreSQL service where the interesting part is below the SQL layer. The query engine, catalog, extensions and wire protocol are PostgreSQL (16, 17 and, since 25 March 2026, 18). What [...]

Oracle Exadata to PostgreSQL 18 Migration: An Airline Operations Case Study from the MinervaDB Data Migration Team

This is the MinervaDB Data Migration Team's write-up of an Oracle Exadata to PostgreSQL 18 migration for an airline operations platform: crew scheduling, flight status, aircraft rotation and the reporting that hangs off them. The [...]

pgvector on RDS deployment patterns: coupled, sidecar and split architectures with HNSW memory sizing

pgvector on RDS: What CTOs Should Know Before Building AI Features on Their OLTP Database

pgvector on RDS is the fastest path to shipping an AI feature, and it is also one of the quickest ways to turn a healthy transactional database into a latency incident. Both statements are true [...]

PostgreSQL 18 vacuum tuning diagram showing the autovacuum decision pipeline, new PostgreSQL 18 parameters and per-table policy tiers

Your Engineers Shouldn’t Be Doing PostgreSQL 18 Vacuum Tuning at Midnight

PostgreSQL 18 vacuum tuning is a design activity that belongs in a change review, next to your schema migrations and your capacity model. In most engineering organisations it is still handled somewhere else entirely: at [...]

Oracle Exadata Cost Optimization: Migrating to an Open Source Data Infrastructure Stack Without Compromising Performance, Scalability, Availability, or Reliability

MinervaDB whitepaper on Oracle Exadata cost optimization: measure Exadata license spend, optimize in place, then migrate to PostgreSQL 18, ClickHouse 26.3 LTS, Kafka/Debezium and Valkey with code, diagrams, TCO model and a rollback-safe cutover plan.

[...]

PostgreSQL 18 Performance Internals: Optimizer and Indexing Advancements

PostgreSQL 18 performance internals deep dive: async I/O, B-tree skip scan, self-join elimination and planner rewrites — verified with real EXPLAIN output on 18.4.

[...]

PostgreSQL Support diagram of the query lifecycle from parse to execute with planner inputs, pg_stat_statements instrumentation and a wait event triage table

Optimizing SQLs in PostgreSQL 18.4: 12 Proven Techniques for Peak Performance

A practical field manual for optimizing SQLs in PostgreSQL 18.4: EXPLAIN with buffers, B-tree skip scans, asynchronous I/O, statistics, join tuning, six animated diagrams and seven premium diagnostic scripts.

[...]

btree_gist improvements in PostgreSQL 18

The btree_gist improvements in PostgreSQL 18 are one of the most practical performance wins shipping in this release for teams that depend on exclusion constraints, composite indexes, and nearest-neighbour search. The btree_gist extension lives in [...]

PostgreSQL 18 Consulting: Top 25 Features — The Complete Guide for DBAs

PostgreSQL 18, released on September 25, 2025, is the current major version of the world's most advanced open-source relational database. Whether you are looking for expert PostgreSQL 18 consulting, professional PostgreSQL 18 support, or a [...]

UUIDv7 and Time-Based Partitioning in PostgreSQL 18

UUIDv7 and Time-Based Partitioning in PostgreSQL 18: A Complete Guide Introduction: The UUID Evolution That Changes Everything PostgreSQL 18 introduces native support for UUIDv7, a game-changing identifier format that solves one of the database world’s […]