PostgreSQL Conference Japan 2025

PostgreSQL Conference Japan 2025 took place on November 7, 2025 in Tokyo, Japan. The annual conference is organised by the Japan PostgreSQL User Group (JPUG) and is one of the largest PostgreSQL community events in Asia.

Conference overview

The 2025 edition featured keynotes from PostgreSQL committers and major contributors, alongside a full track of technical sessions delivered in Japanese and English.

Selected sessions:

• PostgreSQL 17 Deep Dive — a comprehensive walkthrough of new features by a PostgreSQL committer
• Large-Scale PostgreSQL Operations at Japanese Internet Companies — real-world operational experience from teams managing multi-terabyte deployments
• Logical Replication for Zero-Downtime Upgrades — architecture and tooling for major version upgrades without scheduled downtime
• AI and pgvector: Building Semantic Search in PostgreSQL — practical session on embedding models, index selection, and query patterns for vector workloads

Lightning talks

The conference included a lightning talk session covering extensions, tooling, and community contributions. Topics ranged from pg_partman internals to experiences contributing to the PostgreSQL documentation project.

More details at postgresql.jp.