PGNexus Daily News PostgreSQL Technical Articles [image: pgAdmin 4 v9.16 Released] <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.postgresql.org%2Fabout%2...> www.postgresql.org pgAdmin 4 v9.16 Released <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.postgresql.org%2Fabout%2...> pgAdmin 4 v9.16 has been released with 64 bug fixes and new features. The most critical updates address seven security vulnerabilities (CVE-2026-12044 through CVE-2026-12050), cov… Read the Blog <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.postgresql.org%2Fabout%2...> [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...> 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...> PostgreSQL Hackers Email Discussion Highlights enhance wraparound warnings <https://pgnexus.ai/hacker-discussions?subject=enhance%20wraparound%20warning...> A recently committed enhancement to XID and MultiXactId wraparound warnings added a DETAIL message showing an approximate percentage of transaction IDs available for use. Fujii Ma… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=enhance%20wraparound%20warning...> 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 Antonin Houska submitted a small patch to the ongoing "Adding REPACK [concurrently]" thread, removing an outdated comment that was only valid in earlier versions of the patch.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...> synchronized_standby_slots behavior inconsistent with quorum-based synchronous replication <https://pgnexus.ai/hacker-discussions?subject=synchronized_standby_slots%20b...> The discussion focuses on a patch addressing inconsistent behavior of `synchronized_standby_slots` with quorum-based synchronous replication. Shveta Malik reviewed whether duplica… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=synchronized_standby_slots%20b...> Checkpointer write combining <https://pgnexus.ai/hacker-discussions?subject=Checkpointer%20write%20combini...> Melanie Plageman posted v15 of the checkpointer write combining patch, featuring significant changes since the previous version. The main addition is that regular backends and the… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=Checkpointer%20write%20combini...> Fix \crosstabview to honor \pset display_true/display_false <https://pgnexus.ai/hacker-discussions?subject=Fix%20%5Ccrosstabview%20to%20h...> Chao Li identified that `\crosstabview` does not honor `\pset display_true/display_false` settings introduced by a recent commit. The proposed fix adds a helper function `printQue… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=Fix%20%5Ccrosstabview%20to%20h...> explain plans for foreign servers <https://pgnexus.ai/hacker-discussions?subject=explain%20plans%20for%20foreig...> The thread discusses adding support for remote EXPLAIN plans in `postgres_fdw`. A key challenge is that some queries—not just INSERTs—send runtime parameters (e.g., from subquerie… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=explain%20plans%20for%20foreig...> Click here for the full Hacker discussion highlights <https://pgnexus.ai/daily-updates?file=2026-06-19-postgresql-daily-news-182.m...> Industry News [image: OpenAI Recruits Transformer Co-inventor Noam Shazeer Ahead of IPO] <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F06%2F...> techcrunch.com OpenAI Recruits Transformer Co-inventor Noam Shazeer Ahead of IPO <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F06%2F...> OpenAI is bolstering its talent roster ahead of its planned IPO, hiring Transformer co-inventor Noam Shazeer from Google DeepMind and former Trump administration AI policy officia… [image: AWS Plans to Sell Its AI Chips to External Data Centers to Challenge Nvidia] <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F06%2F...> techcrunch.com AWS Plans to Sell Its AI Chips to External Data Centers to Challenge Nvidia <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F06%2F...> Amazon Web Services is in talks to sell its proprietary AI chips to third-party data centers, a move that would put it in more direct competition with Nvidia in the AI hardware ma… Social Media Updates [image: That's a wrap on #DataAISummit 2026.] <https://pgnexus.ai/social-media?url=https%3A%2F%2Fwww.linkedin.com%2Fposts%2...> linkedin That's a wrap on #DataAISummit 2026. <https://pgnexus.ai/social-media?url=https%3A%2F%2Fwww.linkedin.com%2Fposts%2...> The 2026 Data and AI Summit has officially concluded. Organizers thanked all attendees, both in-person and virtual participants, for contributing to what they described as the bes… [image: For years vendors have been claiming they've seamlessly united analytical, transactional and now AI workloads.] <https://pgnexus.ai/social-media?url=https%3A%2F%2Fwww.linkedin.com%2Fposts%2...> linkedin For years vendors have been claiming they've seamlessly united analytical, transactional and now AI workloads. <https://pgnexus.ai/social-media?url=https%3A%2F%2Fwww.linkedin.com%2Fposts%2...> pgEdge has released ColdFront, a data tiering extension for PostgreSQL that automatically moves cold data to Apache Iceberg on S3 at up to 90% lower storage cost while keeping hot… linkedin We're bringing millisecond performance directly to the lakehouse. <https://pgnexus.ai/social-media?url=https%3A%2F%2Fwww.linkedin.com%2Fposts%2...> Databricks co-founder and Chief Architect Reynold Xin has announced Lakehouse//RT, a new real-time data warehouse built for operational analytics, business intelligence, app servi… Want to stay up to date with the PostgreSQL community and industry news? 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