LISTEN/NOTIFY is elegant—but NOTIFY grabs a cluster-wide exclusive lock that can cascade into timeouts under high concurrency. Jimmy Angelakos, (@vyruss) PostgreSQL Contributor, shares a real-world fix at POSETTE: An Event for Postgres 2026.

Add Livestream 4 on Thu 18 Jun to your calendar & join us in the virtual hallway track during Jimmy's talk
https://posetteconf.com/2026/talks/listen-carefully-how-notify-can-trip-up-your-database/

#PosetteConf #PostgreSQL #Postgres #Database #Community #OpenSource #ListenNotify #Concurrency #Locking

How do you diagnose whether a Postgres bottleneck is CPU, I/O, or network? Rahila Syed (Microsoft) walks through iterative profiling with perf & pgbench, showing how bottlenecks shift during optimization at POSETTE 2026, a free & virtual developer event.

Register for updates to POSETTE Livestream 4 on Thu 18 Jun & attend Rahila's talk
https://posetteconf.com/2026/talks/journey-of-developing-a-performance-optimization-feature-in-postgresql/

#PosetteConf #PostgreSQL #Postgres #Database #Community #Microsoft #OpenSource #Performance #Replication #WAL #Profiling

Logical replication in Postgres was once a low-level decoding API and now powers CDC, zero-downtime migrations, & analytics. Hari Kiran (OpenSource DB) presents on its past & its future at POSETTE 2026.

Join us for Hari’s talk on Thu 18 Jun, Livestream 4 https://posetteconf.com/2026/talks/past-present-and-future-logical-decoding-and-replication-in-postgresql/

#PosetteConf #PostgreSQL #Postgres #Database #Community #OpenSource #LogicalReplication #CDC #Replication #DistributedPostgreSQL

Chun Lin Goh (.NET Foundation Member) models Postgres performance on burstable cloud instances, showing how to calculate the exact saturation point before CPU credits run out.

Join us for Livestream 4 to watch Chun Lin's talk on Thu 18 Jun at POSETTE: An Event for Postgres 2026 https://posetteconf.com/2026/talks/modelling-postgres-performance-degradation-on-burstable-cloud-instances/

#PosetteConf #PostgreSQL #Postgres #Database #Community #OpenSource #CloudComputing #Performance #BurstableInstances

In this talk, Dingding Lu (Microsoft) shares why Microsoft built Azure HorizonDB for PostgreSQL, a shared storage architecture engineered for performance & scale.

Mark your calendar for POSETTE 2026 Livestream 3 on Wed 17 Jun & join us for Dingding's talk.
https://posetteconf.com/2026/talks/why-we-built-azure-horizondb-for-postgresql/

#PosetteConf #PostgreSQL #Postgres #Database #Community #Microsoft #Azure #OpenSource #CloudComputing #Performance

Three years of Postgres partitioning mistakes—so you don't have to. Derk van Veen (Adyen) shares his Postgres partitioning cookbook.

Register for updates to POSETTE: An Event for Postgres 2026, Livestream 4 on Thu 18 Jun
https://posetteconf.com/2026/talks/my-postgres-partitioning-cookbook/

#PosetteConf #PostgreSQL #Postgres #Database #Community #OpenSource #Partitioning #DatabasePerformance #DBA

Upgrading Postgres can make queries faster with zero code changes. At POSETTE 2026, Divya Bhargov (Microsoft) compares Postgres 17 & 18 execution plans side by side.

Join us for Livestream 3 to watch Divya's talk on Wed 17 Jun
https://posetteconf.com/2026/talks/postgresql-17-vs-18-side-by-side-performance-wins-in-real-world-queries/

#PosetteConf

Sai Srirampur (ClickHouse) demonstrates that, for very large datasets, bottlenecks are often due to slow storage not Postgres.

Mark your calendar for POSETTE: An Event for Postgres 2026, Livestream 3 on Wed 17 Jun
https://posetteconf.com/2026/talks/postgres-isn-t-slow-your-storage-is/

#PosetteConf #PostgreSQL #Postgres #Database #Community #OpenSource #Performance #NVMe #Storage #Benchmarking

PgQ brings lockless queuing to Postgres. Alexander Kukushkin (Microsoft), the Patroni guy, shows how at POSETTE 2026, a free & virtual developer event.

Mark your calendar for POSETTE Livestream 2 on Wed 17 Jun & join us for Alexander's talk
https://posetteconf.com/2026/talks/postgresql-queues-done-right-with-pgq/

#PosetteConf #PostgreSQL #Postgres #Database #Community #OpenSource #Microsoft #Developer

Did you know you can build event-driven architectures directly on PostgreSQL using its write-ahead log & Drasi. Diaa Radwan (Microsoft) compares CDC approaches at POSETTE 2026

Mark your calendar for POSETTE Livestream 3 on Wed 17 Jun

https://posetteconf.com/2026/talks/building-event-driven-systems-with-postgresql-logical-replication-and-drasi/

#PosetteConf #PostgreSQL #Postgres #Database #Community #OpenSource #Microsoft #Azure #Developer