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Chris van Eijk: remaining connection slots are reserved in PostgreSQL

16. Oktober 2026 - 2:00
'remaining connection slots are reserved for roles with the SUPERUSER attribute': why PostgreSQL refuses you, measured on 15–17, and how to free slots.

Chris van Eijk: invalid input syntax for type uuid in PostgreSQL, measured

16. Oktober 2026 - 2:00
What raised 'invalid input syntax for type uuid' in PostgreSQL 17, measured: which strings cast, 'undefined' from a driver, '' from a setting, and fixes.

Chris van Eijk: CREATE POLICY IF NOT EXISTS in PostgreSQL: what works

16. Oktober 2026 - 2:00
PostgreSQL has no CREATE POLICY IF NOT EXISTS. Three ways to write a repeatable policy migration, measured on PostgreSQL 17 and 18: gaps, locks and races.

Chris van Eijk: Rails, ActiveRecord and PostgreSQL RLS, measured

16. Oktober 2026 - 2:00
Setting the tenant for PostgreSQL row-level security in Rails 8.1, measured: before_action, a transaction per request, threads in a request, failed writes.

Chris van Eijk: stack depth limit exceeded in PostgreSQL: four causes

16. Oktober 2026 - 2:00
What raised 'stack depth limit exceeded' in PostgreSQL 17, measured: triggers, recursion, a policy reading its table via a function, long expressions.

Chris van Eijk: TypeORM and PostgreSQL row-level security, measured

16. Oktober 2026 - 2:00
Setting the tenant for PostgreSQL row-level security in TypeORM 1.1, measured: dataSource.query, QueryRunner, transactions, and an injected repository.

Chris van Eijk: Hibernate multi-tenancy and PostgreSQL RLS in Spring Boot

16. Oktober 2026 - 2:00
Where to set the tenant for PostgreSQL row-level security in Spring Boot 4 and Hibernate 7, measured: DataSource wrapper, interceptor, @Transactional, provider.

Pavel Luzanov: PostgreSQL 19: part 5.2 (DBA1 and DBA2) of CommitFest 2026-03

16. Oktober 2026 - 2:00

We’re continuing our review of the March CommitFest for PostgreSQL 19. This second article in the series covers the changes related to our DBA1 and DBA2 courses.

As a reminder, here’s the plan for our coverage of the final PostgreSQL 19 CommitFest:

Part 5.1 (QPT)

Part 5.2 (DBA1, DBA2) -- you are here 🙂

Part 5.3 (DBA3, DBS)

Tejaswi Thimmaiah: PostgreSQL Roles and Privileges Explained: A Practical RBAC Guide

15. Oktober 2026 - 20:10
Table Of Contents
  1. Build Your PostgreSQL RBAC Lab
  2. Meet Our Credit Card Application — The RBAC Scenario
  3. Robert Haas: Hacking Workshop for November 2026

    15. Oktober 2026 - 19:04
    Álvaro Herrera will be joining us in November to discuss, when our monthly hacking workshop will cover Table repacking, done right. If you're interesting in joining us, please sign up using this form and I will send you an invite to one of the sessions.Read more »

Christophe Pettus: A Parade of Horribles, in Serial Order

15. Oktober 2026 - 18:00
Sooner or later, someone on the team reads about write skew. It is an unsettling read: two transactions, each correct on its own, each looking at data the other is about to change, both committing, and the database ending up in a state that no ordering of the two could have produced. READ COMMITT… (I consult on PostgreSQL through PGX Inc..)

Dave Page: Moving the pgAdmin Build Farm to GitHub Actions

15. Oktober 2026 - 14:55

For most of the last decade, every copy of pgAdmin that anyone has ever downloaded was built by a Jenkins server, and for most of that time it did the job perfectly well. It built the Debian and Red Hat packages, the Windows installer, the macOS app bundle, the Python wheel, the container image, the Helm chart and the documentation; it signed them, published them to the download site, and told me when something had gone wrong.

Floor Drees: PGConf.Asia 2026: EDB 발표 세션과 PostgreSQL 기술 인사이트

15. Oktober 2026 - 3:04
2026년 11월 17~18일 홍콩에서 열리는 PGConf.Asia 2026에서 EDB 전문가들이 PostgreSQL의 주요 기술과 운영 과제를 소개합니다. AI 기반 SQL 생성과 검색·RAG부터 스케일아웃 아키텍처, 성능 튜닝, CloudNativePG 및 TPA 기반 클러스터 관리까지 주요 발표 세션을 미리 살펴보세요.

Christophe Pettus: All Your GUCs in a Row: primary_conninfo

15. Oktober 2026 - 3:00
`primary_conninfo` tells a standby where to stream WAL from—but only after the archive and pg_wal run dry. (I consult on PostgreSQL through PGX Inc..)

Devrim GÜNDÜZ: bigquery_fdw works again on every distribution we ship in the RPM repo

15. Oktober 2026 - 0:35
I packaged bigquery_fdw over 6 years ago. However if you tried to use bigquery_fdw from the PostgreSQL YUM or zypper repositories recently, there is a good chance it did not work: the Python modules it needs could not be imported by the interpreter it runs in. The packages that are in the repositories as of today fix that on RHEL 8, 9 and 10, Fedora 43, 44 and 45, Amazon Linux 2023, and SLES 15 and 16.

Christophe Pettus: All Your GUCs in a Row: post_auth_delay and pre_auth_delay

14. Oktober 2026 - 3:00
Debugging PostgreSQL connections requires stopping a backend before it does anything interesting. (I consult on PostgreSQL through PGX Inc..)

Pavel Luzanov: PostgreSQL 19: part 5.1 (QPT) or CommitFest 2026-03

14. Oktober 2026 - 2:00

We’re wrapping up our series of articles reviewing the changes in PostgreSQL 19. The previous articles covered the first four CommitFests: 2025-07, 2025-09, 2025-11, 2026-01.

Mayur B.: PGConf.EU 2026: Into the PostgreSQL Multiverse

13. Oktober 2026 - 22:08

Somewhere in the multiverse, there is a version of you who attends every interesting talk at PGConf.EU.

Unfortunately, in this universe, PostgreSQL has parallel query execution. Humans don’t.

Last year, I created an Underground Map for Database Nerds to navigate PGConf.EU without getting lost in the schedule.

Dimitri Fontaine: Zero-downtime Postgres upgrades with logical replication

13. Oktober 2026 - 14:14

This is part 3 of a series about Postgres logical replication use-cases, and about how the feature set has evolved over the past ten years and ten releases (Postgres 10 through the Postgres 19 beta), one architecture at a time. Part 1 built a hub-and-workers system for write scalability and has the table of what each release added, which this post assumes.

Ming Ying: Making COUNTs and the Rest of Search Really Fast (Part II)

13. Oktober 2026 - 14:00
How ctid-aware segment partitioning, an inverted DocId map, and bitmap postings accelerated ParadeDB's Wikipedia COUNT queries—then a look at the rest of search, where ParadeDB delivered 10–22x TIN's throughput on filtered and time-sorted Hacker News queries.

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