PGNexus Weekly News This Week in PostgreSQL This week brings critical security fixes in pgAdmin 4 v9.16 addressing seven CVEs, a new postgres-lsp language server offering rich editor integration for SQL and PL/pgSQL, a fresh community backup tool pg_hardstorage targeting modern deployment models, and a practical deep-dive into partition key write bottlenecks with diagnostic queries. Together these updates cover tooling, security, performance, and reliability across the PostgreSQL ecosystem. [image: Introducing pg_hardstorage: A New Community-Driven Approach to PostgreSQL Backup and Recovery] <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.cybertec-postgresql.com%...> Jun 23, 2026 | Hans-Jürgen Schönig Introducing pg_hardstorage: A New Community-Driven Approach to PostgreSQL Backup and Recovery <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.cybertec-postgresql.com%...> CYBERTEC has released pg_hardstorage, a new open-source PostgreSQL backup and recovery tool licensed under Apache 2.0. The project does not aim to replace existing tools like pgBa… Read the Blog <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.cybertec-postgresql.com%...> [image: Why Your PostgreSQL Partition Key Is Creating a Write Bottleneck] <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.tigerdata.com%2Fblog%2Fw...> Jun 19, 2026 | NanoHertz Communications Why Your PostgreSQL Partition Key Is Creating a Write Bottleneck <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.tigerdata.com%2Fblog%2Fw...> A skewed PostgreSQL partition key can route the majority of writes to a single partition, creating a write hot spot while others sit idle. This causes cascading problems: excessiv… Read the Blog <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.tigerdata.com%2Fblog%2Fw...> Top 5 Hacker Discussions Index prefetching (v28) refines stream heuristics, adds SP-GiST amgetbatch support, and introduces INDEX_PAGES_LIMIT. Logical replication work spans a conflict log history table under active review and a publication EXCEPT-clause edge case resolved without code change. Row Pattern Recognition reports 98.4% line coverage and clean Valgrind results. REPACK CONCURRENTLY received a minor stale-comment cleanup. Most threads remain open with unresolved implementation questions around memory layout, API correctness, and permission checks. 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...> Antonin Houska submitted a small patch to the ongoing "Adding REPACK [concurrently]" thread, removing an outdated comment that was only valid in earlier versions of the patch. The… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=Adding%20REPACK%20%5Bconcurren...> Proposal: Conflict log history table for Logical Replication <https://pgnexus.ai/hacker-discussions?subject=Proposal%3A%20Conflict%20log%2...> The discussion concerns a proposed conflict log history table (CLT) for logical replication in PostgreSQL. Dilip Kumar merged patches from Amit Kapila and Nisha Moond and confirme… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=Proposal%3A%20Conflict%20log%2...> index prefetching <https://pgnexus.ai/hacker-discussions?subject=index%20prefetching> Peter Geoghegan posted v28 of the index prefetching patch set, with several notable changes. The "start read stream" heuristic now triggers on the fourth heap block switch rather… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=index%20prefetching> Row pattern recognition <https://pgnexus.ai/hacker-discussions?subject=Row%20pattern%20recognition> Henson Choi posted two follow-up reports on the Row Pattern Recognition (RPR) patch. The first covers an updated code coverage analysis: modified-line coverage improved from 96.5%… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=Row%20pattern%20recognition> This Week's Industry Movements Amazon is opening its AI chips to third-party data centers, targeting a $50 billion market and challenging Nvidia's dominance. Groq confirmed a $650 million raise to stay independent after a notable Nvidia deal fell through. SpaceX signed a $150 million per month compute contract with Reflection AI through 2029. Anthropic launched Claude Tag for Slack, embedding persistent AI context capture into enterprise workflows. [image: Amazon Seeks to Sell Its AI Chips to External Data Centers, Challenging Nvidia] <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F06%2F...> techcrunch.com Amazon Seeks to Sell Its AI Chips to External Data Centers, Challenging Nvidia <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F06%2F...> AWS is in talks to sell its proprietary AI chips to third-party data centers, a move that positions Amazon more directly against Nvidia in the AI hardware market. CEO Andy Jassy h… [image: Groq Confirms $650M Funding Round After Nvidia's Not-Acqui-Hire Deal] <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F06%2F...> techcrunch.com Groq Confirms $650M Funding Round After Nvidia's Not-Acqui-Hire Deal <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F06%2F...> AI chipmaker Groq has confirmed a $650 million funding raise following a high-profile not-acqui-hire deal with Nvidia valued at $20 billion. Rather than being absorbed, Groq is le… [image: SpaceX Signs $150M/Month Compute Deal with Open-Source AI Lab Reflection AI] <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F06%2F...> techcrunch.com SpaceX Signs $150M/Month Compute Deal with Open-Source AI Lab Reflection AI <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F06%2F...> SpaceX has signed a major compute agreement with Reflection AI, an open-source AI lab. Under the deal, Reflection AI will pay $150 million per month starting July 1, 2026, through… [image: Anthropic's Claude Tag Brings Always-On AI to Slack for Enterprise Context Capture] <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F06%2F...> techcrunch.com Anthropic's Claude Tag Brings Always-On AI to Slack for Enterprise Context Capture <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F06%2F...> Anthropic has launched Claude Tag, a new feature that integrates its AI model directly into Slack as a persistent, always-on teammate. Beyond boosting individual productivity, Cla… Want to stay up to date with the PostgreSQL community and industry news? Visit PGNexus <https://pgnexus.ai> to learn more