PostgreSQL community and innovation on display at PGConf Germany 2026
PGConf Germany 2026 brought together PostgreSQL contributors, developers, DBAs, and industry leaders for two days of in-depth technical exchange and community collaboration. The event provided a valuable platform to explore the latest innovations shaping PostgreSQL, with a strong focus on real-world challenges and emerging advancements.
Fujitsu played an active role in this year’s conference, showcasing its ongoing contributions to PostgreSQL through two technical sessions focused on platform enhancements and logical replication internals. From improving high availability and upgrade workflows to demystifying the lifecycle of a tuple in logical replication, the discussions highlighted both engineering depth and practical applicability—reinforcing Fujitsu’s commitment to advancing PostgreSQL technologies within the global community.
The event saw participation from PostgreSQL contributors, developers, DBAs, and organizations from across the ecosystem. It was encouraging to see strong awareness within the community about the ongoing PostgreSQL contributions from Fujitsu and the company’s active involvement in advancing PostgreSQL technologies.
Fujitsu participated in two technical sessions that focused on recent PostgreSQL enhancements and logical replication internals.
Fujitsu’s latest enhancements helping drive PostgreSQL innovation
My colleague Vince O'Dea presented the session “Exploring new enhancements and improvements Fujitsu has delivered to PostgreSQL”.
The talk highlighted a number of recent PostgreSQL contributions and improvements developed through the sustained efforts of the Fujitsu PostgreSQL engineering team. The session covered several important areas, including:
- Advanced conflict management to enhance replication robustness
- Table exclusions for more flexible replication configurations
- Seamless cluster upgrades to reduce downtime and operational complexity
- Slot synchronization to support high availability architectures
The life of a PostgreSQL tuple in Logical Replication
I also had the opportunity to present my session, “The life of a tuple in Logical Replication”.
The talk explained the architecture and internals of PostgreSQL logical replication by following the lifecycle of a tuple as it travels from the publisher to the subscriber. The session aimed to simplify complex replication internals through a practical step-by-step walkthrough.
The presentation covered:
- Architecture of PostgreSQL logical replication
- End-to-end lifecycle of a data change from publisher to subscriber
- WAL generation and logical decoding concepts
- Transaction flow and tuple processing inside logical replication
- A simplified walkthrough of replication internals using a practical example
The audience engagement during the session was especially encouraging, with several insightful questions and discussions around logical replication behavior, performance considerations, and operational use cases.
For those following along with the community discussions
I shared the presentation with the wider PostgreSQL community as part of my coverage of PGConf India 2026.
You can access the full presentation here.
Community interaction and discussions
Beyond the conference sessions, the Fujitsu booth attracted strong engagement from attendees throughout the event. It provided an excellent opportunity to interact with PostgreSQL users, contributors, and community members from different organizations and backgrounds.
Discussions covered a wide range of PostgreSQL topics, including logical replication, cluster upgrades, high availability, conflict detection, and operational challenges faced in production environments. These conversations enabled valuable exchanges of ideas and feedback while also providing deeper insight into how PostgreSQL continues to evolve across diverse deployment scenarios and industry use cases.
Feedback from participants
Many attendees also shared valuable feedback and enhancement requests, including:
- Apply Worker lagging
The Fujitsu team is actively working on Parallel Apply Workers to improve the performance of the apply worker.
- Repeated WAL decoding by multiple WAL senders
The repeated decoding of the same WAL records by multiple WAL senders can lead to additional overhead. Our team is actively exploring a centralized decoding mechanism to address this challenge.
- Community feedback and bug reports
A community member also raised a bug during the event. The issue has been brought to the attention of the relevant team, and investigations are currently underway.
Conclusion
PGConf Germany 2026 was both technically enriching and professionally rewarding. It was a chance to share our work, learn from the community, and engage in meaningful discussions with PostgreSQL contributors and users worldwide.
Beyond the sessions, the real impact came from the ongoing conversations, shared perspectives, and collaborative problem-solving that continue to shape PostgreSQL in practice. Events like PGConf Germany not only connect ideas with real-world use but also reinforce the power of community in driving PostgreSQL forward.
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