https://www.yongjiexue.io/en/tags/postgresql/Recent content in PostgreSQL on Yongjie XueHugoen-USThu, 10 Sep 2026 00:00:00 +0000https://www.yongjiexue.io/en/pg/pgsql-cc-online/Thu, 10 Sep 2026 00:00:00 +0000https://www.yongjiexue.io/en/pg/pgsql-cc-online/pgsql.cc is live, with Chinese documentation for all 11 PostgreSQL major versions from 10 through 20, a redesigned mirror of the official website, and better full-text search. Kept in sync with upstream, with no ads.https://www.yongjiexue.io/en/db/catalog-bullshit/Fri, 28 Aug 2026 00:00:00 +0000https://www.yongjiexue.io/en/db/catalog-bullshit/Snowflake blames the lakehouse’s governance gaps on multiple engines and turns the Catalog into a new billing layer. But the core of an Iceberg Catalog is just a metadata-pointer CAS; the real governance gap comes from separating the control plane from the data path.https://www.yongjiexue.io/en/db/thank-oracle/Sun, 23 Aug 2026 00:00:00 +0000https://www.yongjiexue.io/en/db/thank-oracle/Starting with Stonebraker’s remark that PostgreSQL should “thank Oracle,” this essay looks at the community’s unusual governance model and the challenges it now faces.https://www.yongjiexue.io/en/db/sow/Tue, 11 Aug 2026 00:00:00 +0000https://www.yongjiexue.io/en/db/sow/The hard part of maintaining a PostgreSQL distribution is not compiling packages. At 100,000 artifacts, deduplication, indexing, snapshots, atomic cutovers, and incremental publishing become the real challenge. SOW puts all of that into one self-contained binary, turning RPM and DEB repository management from ad hoc directory scripts into a recoverable, auditable state system.https://www.yongjiexue.io/en/ai/rewrite-pg-in-rust/Sat, 11 Jul 2026 00:00:00 +0000https://www.yongjiexue.io/en/ai/rewrite-pg-in-rust/pgrust’s clean-room rewrite failed. Its mechanical port passed. The difference shows what AI can copy—and what it cannot.https://www.yongjiexue.io/en/pg/happy-30-birthday/Wed, 08 Jul 2026 00:00:00 +0000https://www.yongjiexue.io/en/pg/happy-30-birthday/On July 8, 1996, the PostgreSQL community picked up the flame from Postgres95. Thirty years later, it has grown from a Berkeley research project into a default foundation of the global database ecosystem.https://www.yongjiexue.io/en/pg/pg-pig-clone/Mon, 06 Jul 2026 00:00:00 +0000https://www.yongjiexue.io/en/pg/pg-pig-clone/Pig v1.5 adds pig pg clone and pig pg fork, wrapping PostgreSQL 18’s instant cloning capabilities in an agent-native CLI.https://www.yongjiexue.io/en/pg/what-is-pg-distro/Sat, 04 Jul 2026 00:00:00 +0000https://www.yongjiexue.io/en/pg/what-is-pg-distro/Starting with Linux distributions, this essay explains what a “PostgreSQL distribution” actually is: three layers, two paths, and one core idea.https://www.yongjiexue.io/en/ai/db-fs/Fri, 03 Jul 2026 00:00:00 +0000https://www.yongjiexue.io/en/ai/db-fs/File systems and databases have spent fifty years fighting and borrowing from each other. The agent era may seem to put file systems back on top, but the real winner may be databases that learn to speak the file system’s dialect: models provide understanding, databases provide guarantees, and discovery comes from a protocol layer where ls works on everything.https://www.yongjiexue.io/en/pg/extensions-for-everyone/Wed, 20 May 2026 00:00:00 +0000https://www.yongjiexue.io/en/pg/extensions-for-everyone/A field report on the PostgreSQL extension ecosystem: 1,617 discovered projects, 511 deliverable extensions, and the shared delivery layer needed to make extensibility work for users, authors, vendors, and PostgreSQL hackers.https://www.yongjiexue.io/en/pg/pgcfd2026-intro/Tue, 19 May 2026 00:00:00 +0000https://www.yongjiexue.io/en/pg/pgcfd2026-intro/PGConf.Dev 2026 opens in Vancouver as the PostgreSQL project marks its 30th anniversary. I will also be speaking on Extensions for Everyone.https://www.yongjiexue.io/en/pg/pgbackrest-resume/Tue, 05 May 2026 00:00:00 +0000https://www.yongjiexue.io/en/pg/pgbackrest-resume/Seven days after pgBackRest was archived, David Steele said a coalition of sponsors was nearly in place and the project would probably live on. This was not just a heartwarming community story. It was a remarkably clean exercise in forcing the market to price an open-source commons.https://www.yongjiexue.io/en/pg/pgbackrest-archive/Thu, 30 Apr 2026 00:00:00 +0000https://www.yongjiexue.io/en/pg/pgbackrest-archive/Its maintainer, under pressure to make a living, has formally archived pgBackRest, the PostgreSQL ecosystem’s most important backup tool. The entire PostgreSQL community needs to think seriously about how critical open-source dependencies can be sustained.https://www.yongjiexue.io/en/ai/dba-agent-body/Sun, 26 Apr 2026 00:00:00 +0000https://www.yongjiexue.io/en/ai/dba-agent-body/Today’s models are smart enough. What they lack is a body: a deterministic runtime that is observable, controllable, and reversible. Pigsty is evolving from a PostgreSQL distribution into an Agent Runtime, giving DBA and Dev Agents the operational reach and context they need to enter real production environments.https://www.yongjiexue.io/en/db/mysql-97-bye/Tue, 21 Apr 2026 00:00:00 +0000https://www.yongjiexue.io/en/db/mysql-97-bye/MySQL 9.7 is the first LTS release in the 9.x line. Its vector support is still all show, its years-late optimizer is disabled by default, and three years of Innovation Releases have produced remarkably little.https://www.yongjiexue.io/en/ai/agent-memory-framework/Sun, 19 Apr 2026 00:00:00 +0000https://www.yongjiexue.io/en/ai/agent-memory-framework/A cold shower for the red-hot agent memory market—not because agents do not need memory, but because memory is the endgame moat. That moat belongs to models, harnesses, and databases, not today’s “memory frameworks.”https://www.yongjiexue.io/en/pg/extension-504/Mon, 13 Apr 2026 00:00:00 +0000https://www.yongjiexue.io/en/pg/extension-504/One GitHub issue turned into an extension sprint. 32 new additions, 504 in total, say a lot about where PostgreSQL is headed.https://www.yongjiexue.io/en/ai/postgres-and-ai/Sat, 11 Apr 2026 00:00:00 +0000https://www.yongjiexue.io/en/ai/postgres-and-ai/Boring technology won the wildest era. A look at extensibility, agent choice, database cloning, and the future of the DBA.https://www.yongjiexue.io/en/pg/pg-vs-mysql-2026/Fri, 03 Apr 2026 00:00:00 +0000https://www.yongjiexue.io/en/pg/pg-vs-mysql-2026/By 2026, PostgreSQL has won the market for new database adoption, outperforming MySQL across developer adoption, vendor strategy, capital markets, and community governance. MySQL still owns the installed base; Postgres owns the growth.https://www.yongjiexue.io/en/cloud/digoal-leave-aliyun/Thu, 02 Apr 2026 00:00:00 +0000https://www.yongjiexue.io/en/cloud/digoal-leave-aliyun/Alibaba Cloud’s leading PostgreSQL advocate has walked away, exposing a deeper struggle over the direction of China’s cloud database market.https://www.yongjiexue.io/en/db/agent-state-db/Fri, 20 Mar 2026 00:00:00 +0000https://www.yongjiexue.io/en/db/agent-state-db/Put an AI agent’s working directory, configuration, and memory on a PGFS mount, and you are effectively storing its state in PostgreSQL. That gives you not only a PITR “time machine,” but also a shared workspace and shared memory for multiple agents across multiple devices.https://www.yongjiexue.io/en/db/insforge/Wed, 11 Mar 2026 00:00:00 +0000https://www.yongjiexue.io/en/db/insforge/InsForge tries to package PostgreSQL, auth, storage, deployment, and an MCP-facing semantic layer into a backend stack designed for AI agents. It feels like a Supabase rebuilt for the vibe-coding era.https://www.yongjiexue.io/en/pg/ivorysql/Sun, 22 Feb 2026 00:00:00 +0000https://www.yongjiexue.io/en/pg/ivorysql/A migration case with only a JAR and no source code shows why Oracle syntax compatibility is not always a fake requirement, and how IvorySQL + Pigsty can absorb legacy debt at low cost.https://www.yongjiexue.io/en/pg/pg-out-of-sync-202602/Thu, 19 Feb 2026 00:00:00 +0000https://www.yongjiexue.io/en/pg/pg-out-of-sync-202602/The PostgreSQL 18.2 minor-release train introduced regressions in substring() and WAL replay. Hold off on fresh deployments and upgrades, then update promptly after the out-of-cycle releases ship on 2026-02-26.https://www.yongjiexue.io/en/ai/agent-moat/Fri, 06 Feb 2026 00:00:00 +0000https://www.yongjiexue.io/en/ai/agent-moat/A mediocre local who knows the terrain beats a genius parachuted into unknown territory. Intelligence without context is idle. An agent without a runtime is vapor.https://www.yongjiexue.io/en/ai/neo-software/Sat, 31 Jan 2026 00:00:00 +0000https://www.yongjiexue.io/en/ai/neo-software/SaaS and workflow software are dead. From APPs & GUIs to Agents, Databases, and CLI.https://www.yongjiexue.io/en/ai/agent-os/Mon, 26 Jan 2026 00:00:00 +0000https://www.yongjiexue.io/en/ai/agent-os/LLM = CPU. Context = RAM. Database = Disk. Agent = App. The mapping is surprisingly clean. And if OS history is any guide, we may know what comes next — and what’s still missing.https://www.yongjiexue.io/en/pg/pg-ha-sota/Fri, 23 Jan 2026 00:00:00 +0000https://www.yongjiexue.io/en/pg/pg-ha-sota/A deep dive into the SOTA approach for PostgreSQL HA. RTO/RPO breakdown, from theory to production. If you’re still wrestling with PG HA, this might save you years.https://www.yongjiexue.io/en/pg/pg-clone/Sat, 27 Dec 2025 00:00:00 +0000https://www.yongjiexue.io/en/pg/pg-clone/How to instantly clone a massive PostgreSQL database without consuming extra storage? PostgreSQL 18 and XFS can spark some serious magic.https://www.yongjiexue.io/en/db/db-year-review-2025/Wed, 24 Dec 2025 00:00:00 +0000https://www.yongjiexue.io/en/db/db-year-review-2025/A conversation between Mike Stonebraker (MIT CSAIL, Turing Award Winner, Creator of PostgreSQL), Andy Pavlo (Carnegie Mellon University), and the DBOS team.https://www.yongjiexue.io/en/db/agent-native-db/Sun, 21 Dec 2025 00:00:00 +0000https://www.yongjiexue.io/en/db/agent-native-db/The bottleneck for AI agents is not the database kernel, but integration above it. Muscle memory (in-database computation), associative memory (vector-graph fusion), and the courage to experiment (Git for Data) will be critical—none of them requires a new engine.https://www.yongjiexue.io/en/pg/ai-db-king/Mon, 01 Dec 2025 00:00:00 +0000https://www.yongjiexue.io/en/pg/ai-db-king/Context window economics, the polyglot persistence problem, and the triumph of zero-glue architecture make PostgreSQL the database king of the AI era.https://www.yongjiexue.io/en/pg/forge-a-pg-distro/Thu, 27 Nov 2025 00:00:00 +0000https://www.yongjiexue.io/en/pg/forge-a-pg-distro/PostgreSQL already won. The real battle is the distro layer. Will Chinese developers watch from the sideline or craft a PG “Ubuntu” for the world?https://www.yongjiexue.io/en/db/no-docker-pg/Thu, 20 Nov 2025 00:00:00 +0000https://www.yongjiexue.io/en/db/no-docker-pg/Tons of users running the official docker postgres image got burned during recent minor version upgrades. A friendly reminder: think twice before containerizing production databases.https://www.yongjiexue.io/en/pg/pgext-cloud/Wed, 12 Nov 2025 00:00:00 +0000https://www.yongjiexue.io/en/pg/pgext-cloud/Free, open, no VPN. Install PostgreSQL and 431 extensions on 14 Linux distros × 6 PG versions via native RPM/DEB—and a tiny CLI.https://www.yongjiexue.io/en/pg/pg-mirror-pigsty/Fri, 15 Aug 2025 00:00:00 +0000https://www.yongjiexue.io/en/pg/pg-mirror-pigsty/PostgreSQL official repos cut off global mirror sync channels, open-source binaries supply disrupted, revealing the true colors of various database and cloud vendors.https://www.yongjiexue.io/en/pg/mage/Fri, 08 Aug 2025 00:00:00 +0000https://www.yongjiexue.io/en/pg/mage/Navigation of articles about PostgreSQL development, administration, principles, ecosystem, tools, architecture design, performance optimization, troubleshooting, and more.https://www.yongjiexue.io/en/pg/proprity-pg/Tue, 05 Aug 2025 00:00:00 +0000https://www.yongjiexue.io/en/pg/proprity-pg/The same forces that once led MongoDB and MySQL toward closure are now at work in the PostgreSQL ecosystem. The PG world needs a distribution that represents “software freedom” values.https://www.yongjiexue.io/en/pg/so2025-pg/Thu, 31 Jul 2025 00:00:00 +0000https://www.yongjiexue.io/en/pg/so2025-pg/The 2025 SO global developer survey results are fresh out, and PostgreSQL has become the most popular, most loved, and most wanted database for the third consecutive year. Nothing can stop PostgreSQL from consolidating the entire database world!https://www.yongjiexue.io/en/db/car-autopilot-test/Sat, 26 Jul 2025 00:00:00 +0000https://www.yongjiexue.io/en/db/car-autopilot-test/Imagine a “closed-course” shootout for domestic databases and clouds, the way Dongchedi just humiliated 30+ autonomous cars. This industry needs its own stress test.https://www.yongjiexue.io/en/ai/google-mcp/Wed, 09 Jul 2025 00:00:00 +0000https://www.yongjiexue.io/en/ai/google-mcp/Google recently launched a database MCP toolbox, perhaps the first production-ready solution.https://www.yongjiexue.io/en/pg/pg-mirror-break/Mon, 07 Jul 2025 00:00:00 +0000https://www.yongjiexue.io/en/pg/pg-mirror-break/PGDG cuts off FTP rsync sync channels, global mirror sites universally disconnected - this time they really strangled global users’ supply chain.https://www.yongjiexue.io/en/db/db-for-ai/Tue, 03 Jun 2025 00:00:00 +0000https://www.yongjiexue.io/en/db/db-for-ai/The database for the AI era has been settled. Capital markets are making intensive moves on PostgreSQL targets, with PG having become the default database for the AI era.https://www.yongjiexue.io/en/db/openai-pg/Mon, 19 May 2025 00:00:00 +0000https://www.yongjiexue.io/en/db/openai-pg/At PGConf.Dev 2025, Bohan Zhang from OpenAI shared a session titled Scaling Postgres to the next level at OpenAI, giving us a peek into the database usage of a top-tier unicorn.https://www.yongjiexue.io/en/ai/ai-agent-era/Sun, 27 Apr 2025 00:00:00 +0000https://www.yongjiexue.io/en/ai/ai-agent-era/Future software = Agent + Database. No middle tiers, just agents issuing CRUD. Database skills age well, and PostgreSQL is poised to be the agent-era default.https://www.yongjiexue.io/en/db/mysql-vs-pgsql/Thu, 17 Apr 2025 00:00:00 +0000https://www.yongjiexue.io/en/db/mysql-vs-pgsql/A 2025 reality check on where PostgreSQL stands relative to MySQL across features, performance, quality, and ecosystem.https://www.yongjiexue.io/en/pg/pgext-day/Wed, 09 Apr 2025 00:00:00 +0000https://www.yongjiexue.io/en/pg/pgext-day/The annual PostgreSQL developer conference will be held in Montreal in May. Like the first PG Con.Dev, there’s also an additional dedicated event - Postgres Extensions Dayhttps://www.yongjiexue.io/en/pg/orioledb-is-coming/Sun, 06 Apr 2025 00:00:00 +0000https://www.yongjiexue.io/en/pg/orioledb-is-coming/A PG kernel fork acquired by Supabase, claiming to solve PG’s XID wraparound problem, eliminate table bloat issues, improve performance by 4x, and support cloud-native storage. Now part of the Pigsty family.https://www.yongjiexue.io/en/pg/openhalo-mysql/Thu, 03 Apr 2025 00:00:00 +0000https://www.yongjiexue.io/en/pg/openhalo-mysql/What? PostgreSQL can now be accessed using MySQL clients? That’s right, openHalo, which was open-sourced on April Fool’s Day, provides exactly this capability and has now joined the Pigsty kernel family.https://www.yongjiexue.io/en/pg/pgfs/Fri, 21 Mar 2025 00:00:00 +0000https://www.yongjiexue.io/en/pg/pgfs/Leverage JuiceFS to turn PostgreSQL into a filesystem with PITR capabilities!