PGNexus Weekly News This Week in PostgreSQL This week covers PostgreSQL tooling and security highlights: PostgreSQL Migrator 1.0 brings a stable, open-source path for migrating Oracle and MySQL databases to Postgres. pg_vault_tde v1.7.1 delivers AES-256-GCM transparent encryption for PG 17 and 18. A deep dive into WAL write amplification reveals real insert costs and mitigation strategies. CYPEX v2.0.0 moves multi-tenancy enforcement from application queries into native row-level security policies. [image: The Real Cost of a Single Insert in Postgres] <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.tigerdata.com%2Fblog%2Fr...> Sep 11, 2026 | NanoHertz Communications The Real Cost of a Single Insert in Postgres <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.tigerdata.com%2Fblog%2Fr...> A single insert into a PostgreSQL table with three indexes generates far more physical I/O than the row's logical size suggests. A 40-byte sensor reading produces approximately 34… Read the Blog <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.tigerdata.com%2Fblog%2Fr...> [image: What's new in CYPEX v2.0.0: tenancy moves from the query to the catalog] <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.cybertec-postgresql.com%...> Sep 15, 2026 | Svitlana Lytvynenko What's new in CYPEX v2.0.0: tenancy moves from the query to the catalog <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.cybertec-postgresql.com%...> CYPEX v2.0.0, CYBERTEC's PostgreSQL-based application platform, replaces application-enforced multi-tenancy with PostgreSQL row-level security (RLS). Previously, tenant isolation… Read the Blog <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.cybertec-postgresql.com%...> Top 5 Hacker Discussions Logical replication dominates this cycle's discussions, covering conflict log history tables with TupleTableSlot serialization size constraints, EXCEPT clause support for TABLES IN SCHEMA publications with partition and inheritance interaction rules validated across ~300 combinations, and handling of stale pg_publication_rel entries for UNLOGGED tables—ultimately left unchanged. REPACK CONCURRENTLY is deferred to PG20. Row Pattern Recognition sees minor cleanup debate around pg_nodiscard usage on static functions. Proposal: Conflict log history table for Logical Replication <https://pgnexus.ai/hacker-discussions?subject=Proposal%3A%20Conflict%20log%2...> The thread discusses a proposal for a conflict log history table for logical replication, focusing on a critical problem: serializing TupleTableSlots to JSON can exceed PostgreSQL… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=Proposal%3A%20Conflict%20log%2...> Row pattern recognition <https://pgnexus.ai/hacker-discussions?subject=Row%20pattern%20recognition> The discussion concerns whether `pg_nodiscard` annotations on static functions in the Row Pattern Recognition (RPR) patch series are appropriate. Tatsuo Ishii observed that Postgr… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=Row%20pattern%20recognition> Skipping schema changes in publication <https://pgnexus.ai/hacker-discussions?subject=Skipping%20schema%20changes%20...> Vignesh C proposed a patch to handle UNLOGGED table conversions in PostgreSQL publications. The issue occurs when tables listed in publication EXCEPT clauses are converted to UNLO… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=Skipping%20schema%20changes%20...> Adding REPACK [concurrently] <https://pgnexus.ai/hacker-discussions?subject=Adding%20REPACK%20%5Bconcurren...> The discussion concerns the proposed `REPACK [CONCURRENTLY]` feature for PostgreSQL. Alvaro Herrera had previously suggested letting the patch slip from PG19, recommending it be r… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=Adding%20REPACK%20%5Bconcurren...> Support EXCEPT for TABLES IN SCHEMA publications <https://pgnexus.ai/hacker-discussions?subject=Support%20EXCEPT%20for%20TABLE...> The discussion centers on adding EXCEPT clause support for TABLES IN SCHEMA publications in PostgreSQL logical replication. Shveta malik proposed rules governing how exclusions in… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=Support%20EXCEPT%20for%20TABLE...> This Week's Industry Movements Anthropic alleges distillation attacks by Chinese AI firms including DeepSeek and Moonshot AI, as both companies race toward billion-dollar revenue targets. OpenAI acquires camera tech startup Glass Imaging for $300M, signaling a hardware push. Salesforce and Nvidia jointly launch Koa, a domain-specific enterprise reasoning model. Meanwhile, OpenAI, Anthropic, and Google DeepMind hold rare multi-week AI safety talks amid uncertain policy support from the Trump administration. [image: Anthropic Details Distillation Attacks from Alibaba, Moonshot AI, and DeepSeek] <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F09%2F...> techcrunch.com Anthropic Details Distillation Attacks from Alibaba, Moonshot AI, and DeepSeek <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F09%2F...> Anthropic has released a report alleging persistent model distillation attacks by China-based AI companies, including Alibaba, Moonshot AI, and DeepSeek. The report claims these c… [image: OpenAI Acquires Smartphone Camera Maker Glass Imaging for $300 Million] <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F09%2F...> techcrunch.com OpenAI Acquires Smartphone Camera Maker Glass Imaging for $300 Million <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F09%2F...> OpenAI has acquired Glass Imaging, a smartphone camera technology company, for approximately $300 million, according to reports. Glass Imaging was founded by two former Apple engi… [image: Salesforce and Nvidia Launch Joint Reasoning Model "Salesforce Koa" for Enterprise AI] <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F09%2F...> techcrunch.com Salesforce and Nvidia Launch Joint Reasoning Model "Salesforce Koa" for Enterprise AI <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F09%2F...> Salesforce and Nvidia have jointly unveiled a new reasoning model called Salesforce Koa, built on Nvidia's open-weight Nemotron model. The system is specifically trained to handle… [image: OpenAI, Anthropic, and Google DeepMind Hold Weeks of AI Safety Talks] <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F09%2F...> techcrunch.com OpenAI, Anthropic, and Google DeepMind Hold Weeks of AI Safety Talks <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F09%2F...> OpenAI has confirmed that it, along with Anthropic and Google DeepMind, has been engaged in weeks of discussions focused on AI safety. The talks come as the Trump administration r… Want to stay up to date with the PostgreSQL community and industry news? Visit PGNexus <https://pgnexus.ai> to learn more