PGNexus Daily News PostgreSQL Technical Articles [image: The Default Deny Dilemma: A Practical Guide to Kubernetes Network Policies] <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.cybertec-postgresql.com%...> Wellingtone Luvonga The Default Deny Dilemma: A Practical Guide to Kubernetes Network Policies <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.cybertec-postgresql.com%...> This hands-on guide demonstrates implementing zero-trust network segmentation in Kubernetes using NetworkPolicies enforced by the Calico CNI. It covers a three-tier architecture (… Read the Blog <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.cybertec-postgresql.com%...> [image: SQL Server database migration: Planning for mission-critical systems] <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.postgresql.fastware.com%...> Fujitsu SQL Server database migration: Planning for mission-critical systems <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.postgresql.fastware.com%...> Migrating mission-critical SQL Server systems to PostgreSQL requires careful planning due to elevated risk. Key drivers include rising licensing costs, aging infrastructure, cloud… Read the Blog <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.postgresql.fastware.com%...> [image: Is It Safe to Give an AI Agent Access to Your Production Database?] <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.tigerdata.com%2Fblog%2Fa...> Nicole Ghalwash Is It Safe to Give an AI Agent Access to Your Production Database? <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.tigerdata.com%2Fblog%2Fa...> Giving AI agents unrestricted access to production databases carries serious risks. Client-side restrictions are insufficient; enforcement must happen at the database layer. Key r… Read the Blog <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.tigerdata.com%2Fblog%2Fa...> PostgreSQL Hackers Email Discussion Highlights pg_stat_progress_cluster: do not default to CLUSTER <https://pgnexus.ai/hacker-discussions?subject=pg_stat_progress_cluster%3A%20...> Zsolt Parragi submitted a patch to fix `pg_stat_progress_cluster` so it reports NULL instead of defaulting to CLUSTER in certain cases. Fujii Masao approved the patch and plans to… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=pg_stat_progress_cluster%3A%20...> pgstat: Flush some statistics within running transactions, take 2 <https://pgnexus.ai/hacker-discussions?subject=pgstat%3A%20Flush%20some%20sta...> Michael Paquier reviewed patch 0001 of the "flush statistics within running transactions" series rebased by Sami Imseih. He objects to the proposed struct splitting approach—nesti… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=pgstat%3A%20Flush%20some%20sta...> Implement waiting for wal lsn replay: reloaded <https://pgnexus.ai/hacker-discussions?subject=Implement%20waiting%20for%20wa...> The discussion focuses on implementing a PostgreSQL feature to wait for WAL LSN replay. Alexander Korotkov revised patch 0001 with several changes: improved documentation clarifyi… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=Implement%20waiting%20for%20wa...> Add pg_stat_vfdcache view for VFD cache statistics <https://pgnexus.ai/hacker-discussions?subject=Add%20pg_stat_vfdcache%20view%...> The discussion concerns a patch to add a `pg_stat_vfdcache` view for VFD (virtual file descriptor) cache statistics. The latest focus is on switching `fd.c` to use a long-lived me… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=Add%20pg_stat_vfdcache%20view%...> Assert failure in try_nestloop_path() <https://pgnexus.ai/hacker-discussions?subject=Assert%20failure%20in%20try_ne...> The thread addresses an assertion failure in `try_nestloop_path()` caused by duplicate join clauses being enforced multiple times in nested loop plans. Richard Guo identified two… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=Assert%20failure%20in%20try_ne...> Support for 8-byte TOAST values, round two <https://pgnexus.ai/hacker-discussions?subject=Support%20for%208-byte%20TOAST...> Bharath Rupireddy reviewed Michael Paquier's v15 patch set for 8-byte TOAST value support (OID8). Patch 0001 (enlarging OID generation to 8 bytes) looks good, but raises the quest… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=Support%20for%208-byte%20TOAST...> Click here for the full Hacker discussion highlights <https://pgnexus.ai/daily-updates?file=2026-09-08-postgresql-daily-news-263.m...> Industry News [image: Meta debuts Muse AI personal agent with broad data access ambitions] <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F09%2F...> techcrunch.com Meta debuts Muse AI personal agent with broad data access ambitions <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F09%2F...> Meta has unveiled Muse, a new personal AI agent designed to access users' email, calendars, payments, health services, and more. The launch represents Meta's largest consumer AI b… [image: OpenAI accused of misconduct over Navier-Stokes math problem bounty] <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F09%2F...> techcrunch.com OpenAI accused of misconduct over Navier-Stokes math problem bounty <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F09%2F...> An NYU mathematician has accused OpenAI of fighting dirty in connection with the Navier-Stokes existence and smoothness problem, one of mathematics' most prestigious unsolved chal… [image: Google Cloud expands enterprise AI push with new Accenture partnership] <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F09%2F...> techcrunch.com Google Cloud expands enterprise AI push with new Accenture partnership <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F09%2F...> Google Cloud has announced an expanded partnership with Accenture aimed at accelerating enterprise AI adoption. The deal centers on deploying forward-deployed engineers to help bu… Social Media Updates [image: This year we also have a sponsor track.] <https://pgnexus.ai/social-media?url=https%3A%2F%2Fwww.linkedin.com%2Fposts%2...> linkedin This year we also have a sponsor track. <https://pgnexus.ai/social-media?url=https%3A%2F%2Fwww.linkedin.com%2Fposts%2...> This year's event includes a sponsor track, featuring a talk by Hans-Juergen Schoenig from CYBERTEC PostgreSQL Services and Support. His presentation covers pg_hardstorage, a topi… [image: Our CEO Hans-Juergen Schoenig just wrapped up his talk at PGDay UK !] <https://pgnexus.ai/social-media?url=https%3A%2F%2Fwww.linkedin.com%2Fposts%2...> linkedin Our CEO Hans-Juergen Schoenig just wrapped up his talk at PGDay UK ! <https://pgnexus.ai/social-media?url=https%3A%2F%2Fwww.linkedin.com%2Fposts%2...> Cybertec CEO Hans-Juergen Schoenig recently presented at PGDay UK, focusing on pg_hardstorage and its underlying storage internals. His talk covered how the backup engine works, t… [image: 🚀 Next Training: PostgreSQL High Availability with Patroni Ready to make your PostgreSQL clusters truly HA?] <https://pgnexus.ai/social-media?url=https%3A%2F%2Fwww.linkedin.com%2Fposts%2...> linkedin 🚀 Next Training: PostgreSQL High Availability with Patroni Ready to make your PostgreSQL clusters truly HA? <https://pgnexus.ai/social-media?url=https%3A%2F%2Fwww.linkedin.com%2Fposts%2...> CYBERTEC is offering a three-day online training course on PostgreSQL high availability using Patroni, scheduled for September 14–16, 2026, from 9:00 am to 2:00 pm CET. The course… Want to stay up to date with the PostgreSQL community and industry news? Visit PGNexus <https://pgnexus.ai> to learn more