PGNexus Daily News PostgreSQL Hackers Email Discussion Highlights The PostgreSQL C Dialect <https://pgnexus.ai/hacker-discussions?subject=The%20PostgreSQL%20C%20Dialect> Christophe Pettus published a new wiki page titled "The PostgreSQL C Dialect," documenting conventions and patterns that extension developers need to understand when writing Postg… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=The%20PostgreSQL%20C%20Dialect> [RFC PATCH v0 0/7] Add EXPLAIN ANALYZE wait event reporting <https://pgnexus.ai/hacker-discussions?subject=%5BRFC%20PATCH%20v0%200%2F7%5D...> The discussion concerns a proposed patch to add wait event reporting to EXPLAIN ANALYZE via a new WAITS option. Robert Haas and Andres Freund both strongly object to the current a… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=%5BRFC%20PATCH%20v0%200%2F7%5D...> Bug in ALTER SUBSCRIPTION ... SERVER / ... CONNECTION with broken old server <https://pgnexus.ai/hacker-discussions?subject=Bug%20in%20ALTER%20SUBSCRIPTIO...> Jeff Davis identified a pre-existing bug in `DropSubscription()`: when `SLOT_NAME=NONE` is set, the function is supposed to skip contacting the publisher, but this early-return lo… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=Bug%20in%20ALTER%20SUBSCRIPTIO...> PG20 Minimum Dependency Thread <https://pgnexus.ai/hacker-discussions?subject=PG20%20Minimum%20Dependency%20...> The PG20 Minimum Dependency Thread continues to debate Python version requirements for the core testing framework. Jacob Champion clarifies his agreement with Tom Lane that requir… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=PG20%20Minimum%20Dependency%20...> 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> 048_vacuum_horizon_floor.pl hangs due to wakeup lost inside LockBufferForCleanup <https://pgnexus.ai/hacker-discussions?subject=048_vacuum_horizon_floor.pl%20...> A race condition in `LockBufferForCleanup()` causes the test ` 048_vacuum_horizon_floor.pl` to hang indefinitely. Alexander Lakhin reported buildfarm failures where VACUUM waits fo… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=048_vacuum_horizon_floor.pl%20...> Click here for the full Hacker discussion highlights <https://pgnexus.ai/daily-updates?file=2026-06-22-postgresql-daily-news-185.m...> Industry News [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 Updates Claude Privacy Policy to Allow Identity Verification in Certain Cases] <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F06%2F...> techcrunch.com Anthropic Updates Claude Privacy Policy to Allow Identity Verification in Certain Cases <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F06%2F...> Anthropic has updated its privacy policy to indicate that its Claude chatbot may ask users to verify their age and identity "in certain circumstances," such as by submitting a pas… Social Media Updates [image: Please join us in welcoming Hopla!] <https://pgnexus.ai/social-media?url=https%3A%2F%2Fwww.linkedin.com%2Fposts%2...> linkedin Please join us in welcoming Hopla! <https://pgnexus.ai/social-media?url=https%3A%2F%2Fwww.linkedin.com%2Fposts%2...> CYBERTEC has announced Hopla! Software as its newest partner. The company specializes in Open Source, Cloud, and Cybersecurity, and shares a focus on helping businesses modernize… [image: A strong start to Cannes Lions.] <https://pgnexus.ai/social-media?url=https%3A%2F%2Fwww.linkedin.com%2Fposts%2...> linkedin A strong start to Cannes Lions. <https://pgnexus.ai/social-media?url=https%3A%2F%2Fwww.linkedin.com%2Fposts%2...> On the first day of Cannes Lions, Databricks joined marketing, advertising, and technology leaders to discuss building trust in an AI-driven world and helping organizations better… [image: Most agentic apps never make it past the prototype stage.] <https://pgnexus.ai/social-media?url=https%3A%2F%2Fwww.linkedin.com%2Fposts%2...> linkedin Most agentic apps never make it past the prototype stage. <https://pgnexus.ai/social-media?url=https%3A%2F%2Fwww.linkedin.com%2Fposts%2...> Most agentic AI applications fail to move beyond the prototype stage. A live discussion featuring Databricks co-founder Patrick Wendell, OpenClaw creator Peter Steinberger, OpenAI… Want to stay up to date with the PostgreSQL community and industry news? Visit PGNexus <https://pgnexus.ai> to learn more