PGNexus Weekly News

This Week in PostgreSQL

This week covers PostgreSQL's expanding AI ecosystem, with new extensions enabling transformer inference, Datalog queries, and approximate regex indexing directly inside Postgres. A detailed migration guide helps operators move between Kubernetes-based operators with minimal downtime, while a vector index tradeoff guide addresses practical AI workload decisions. Shardman 18 brings enterprise-grade horizontal sharding to PostgreSQL 18, rounding out a technically rich week for DBAs and developers alike.

May 25, 2026 | Slava Sarzhan Migrate from Crunchy Data PostgreSQL Operator to Percona PostgreSQL Operator: Standby Cluster Method This blog post provides a detailed technical guide for migrating from Crunchy Data PostgreSQL Operator to Percona PostgreSQL Operator using the standby cluster method. The migrati… Read the Blog

May 26, 2026 | Hien Phan The Postgres Developer's Guide to Vector Index Tradeoffs This comprehensive guide examines vector index selection in PostgreSQL, focusing on four key constraints: memory, recall requirements, write frequency, and filter selectivity. The… Read the Blog

May 25, 2026 | postgrespro.com Postgres Pro Shardman 18 — Review Postgres Pro has released Shardman 18, a sharding extension for PostgreSQL that enables horizontal scaling across multiple nodes. This version introduces improved query planning a… Read the Blog

Top 5 Hacker Discussions

Multiple patches and commits are in active progress: WAL reduction efforts include fixes for REPACK CONCURRENTLY accumulation and elimination of xl_heap_visible records, with test stability commits landed. Index prefetching API design debates continue around TupleTableSlot usage versus dedicated interfaces, with code consolidation concerns raised. pg_plan_advice received a corrected fix from Haas. A proposed cleanup for UNLOGGED table entries in publication EXCEPT lists was abandoned after review deemed current behavior acceptable.

This Week's Industry Movements

OpenRouter raised $113M at a $1.3B valuation, signaling strong demand for multi-model AI infrastructure as usage surged fivefold in six months. Meanwhile, the Dutch government blocked a US firm from acquiring a cloud provider hosting national digital ID services, highlighting Europe's push for data sovereignty over critical infrastructure. Stord secured $250M to challenge Amazon in e-commerce fulfillment while letting brands retain customer relationships.

techcrunch.com OpenRouter more than doubles valuation to $1.3B in a year OpenRouter has raised a $113 million Series B funding round led by CapitalG, more than doubling its valuation to $1.3 billion within a year. The company provides a platform that a…

techcrunch.com Dutch government blocks US company from acquisition, citing 'risk to public interest' The Dutch government has blocked a US company from acquiring a cloud services provider that hosts the Netherlands' digital ID service, citing risks to public interest. This decisi…

techcrunch.com Amazon fulfillment competitor Stord raises $250M at $3B valuation Stord has raised $250 million in funding at a $3 billion valuation, positioning itself as a competitor to Amazon's fulfillment services. The company operates a network of physical…

techcrunch.com Amazon fulfillment competitor Stord raises $250M at $3B valuation Stord has raised $250 million in funding at a $3 billion valuation, positioning itself as a competitor to Amazon's fulfillment services. The company operates a network of physical…

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