Sammlung von Newsfeeds
Christophe Pettus: All Your GUCs in a Row: log_destination and logging_collector
Pavel Stehule: integration Lua to psql II
Andrew Atkinson: PostgreSQL 18: 23x Faster Inserts With UUID V7
We recently switched to version 7 (v7) uuid primary keys and saw significantly faster inserts for some tables.
The databases were running Postgres 18.4 and mostly used v1 with some v4 uuid values for primary keys.
Changing the column default involved running a single alter table command, but did require an exclusive lock on the table, blocking everything including selects.
To solve that, we used a short lock timeout and lots of retries.
Pavlo Golub: pgwatch v6: Prometheus becomes a source, not just a sink
We're excited to unveil pgwatch v6.0.0-beta — the biggest release since v5. It's a big one, so I'm splitting the tour into two posts. This first post is about the headline feature: pgwatch can now scrape a Prometheus exporter directly, as a first-class source, side by side with your regular PostgreSQL sources.
Christophe Pettus: All Your GUCs in a Row: log_connections, log_disconnections, and log_hostname
Alexey Evlampiev: Your Deployment Is a PostgreSQL Program
Every migration tool is a program that executes your SQL. Invert the control flow and deployment policy becomes SQL the project owns.
By Alexey Evlampiev
Ismaël Mejía: MongoDB on PostgreSQL: DocumentDB with pglayers-azure
DocumentDB is a MongoDB-compatible document database built on PostgreSQL. It adds the BSON data type and a full CRUD API to Postgres, and ships a gateway that speaks the MongoDB wire protocol -- so existing MongoDB clients (mongosh, pymongo, the Node.js driver) can connect to a PostgreSQL server as if it were MongoDB. It's the same engine behind Azure DocumentDB.
28 CVEs and a GROUP BY ALL U-turn
#662 — August 26, 2026
🏖️ After a week of being Disneyed-out, I return tired, but more ready than ever to dive back into the (far less humid) waters of Postgres!
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Your editor, Peter Cooper
Postgres Weekly
Hubert 'depesz' Lubaczewski: New things for regular expressions in PostgreSQL (pg_tre and pg_re2)
Henrietta Dombrovskaya: How to optimize when you can’t do anything!
It’s hard to say anything new about query optimization. On the one hand, each new Postgres release includes multiple query planner improvements, and it feels like there is something for any problem that can possibly arise. On the other hand, the fundamental principles of optimization do not change: if your query is highly selective, meaning the result is a small percentage of the original data set, you need to build indexes that would support this particular search.
Hans-Juergen Schoenig: Day to day PostgreSQL on Kubernetes: Resize, Scale, and Upgrade
Deploying a database is the easy day. The interesting days are the ones after: it needs more memory, more read capacity, or a version bump, and you would rather not take an outage for any of them. With the CYBERTEC PG Operator (CPO), all three are one-line changes to a manifest, and the operator rolls them out while the database stays up.
Cornelia Biacsics: Contributions for week 33
On 19 August 2026, the Postgres Meetup for All - Group met online, organized by Elizabeth Christensen. James Nelson and Philip Johnston delivered a talk
Hyderabad PGDays 2026 took place from 20-21 August 2026
Organizers:
- Ameen Abbas
- Hari Kiran P
- Rajesh Madiwale
Program Selection Committee:
Christophe Pettus: All Your GUCs in a Row: log_checkpoints, log_autovacuum_min_duration, and log_temp_files
Gülçin Yıldırım Jelínek: Read your writes: WAIT FOR in PostgreSQL 19
PostgreSQL 19 introduces a new SQL command, WAIT FOR, that lets a session block until WAL has reached a specific position. This gives us read-your-writes consistency on asynchronous replicas without paying the synchronous replication tax.
WAIT FOR LSN 'lsn' WITH ( option [, ...] ) ];
where option can be:
MODE 'mode' TIMEOUT 'timeout' NO_THROW
Alexey Evlampiev: Scenario-Tree Testing in PostgreSQL: Every Authored Branch, Shared History, Before COMMIT
Express the branching scenarios of your business logic as a directory tree; walk it with savepoints so each branch inherits its history instead of rebuilding it; and let the walk decide whether your deployment commits.
By Alexey Evlampiev
cary huang: PostgreSQL in Taipei: Connecting Taiwan to the Global PostgreSQL Community (COSCUP 2026)
COSCUP 2026 was held on August 8–9 at National Taiwan University of Science and Technology (NTUST) in Taipei. As one of Taiwan’s largest annual open-source gatherings, COSCUP brings together developers, users, communities, and open-source advocates from Taiwan and around the world.
Christophe Pettus: The Sixth Execution
Christophe Pettus: All Your GUCs in a Row: listen_addresses
Regina Obe: PostGIS 3.7.0rc1
The PostGIS Team is pleased to release PostGIS 3.7.0rc1!

