https://www.yongjiexue.io/en/pg/Recent content in PostgreSQL Mage 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 +0000Yongjie Xuehttps://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/pg/happy-30-birthday/Wed, 08 Jul 2026 00:00:00 +0000Yongjie Xuehttps://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 +0000Yongjie Xuehttps://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 +0000Yongjie Xuehttps://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/pg/extensions-for-everyone/Wed, 20 May 2026 00:00:00 +0000Yongjie Xuehttps://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 +0000Yongjie Xuehttps://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 +0000Yongjie Xuehttps://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 +0000Yongjie Xuehttps://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/pg/extension-504/Mon, 13 Apr 2026 00:00:00 +0000Yongjie Xuehttps://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/pg/pg-vs-mysql-2026/Fri, 03 Apr 2026 00:00:00 +0000Yongjie Xuehttps://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/pg/ivorysql/Sun, 22 Feb 2026 00:00:00 +0000Yongjie Xuehttps://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 +0000Yongjie Xuehttps://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/pg/pigsty-relicense/Thu, 29 Jan 2026 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/pigsty-relicense/Pigsty switched from AGPLv3 to Apache 2.0. Aren’t you worried about freeloaders? Freeloaders welcome — if you want to become the Debian of databases, a permissive license is table stakes.https://www.yongjiexue.io/en/pg/pg-ha-sota/Fri, 23 Jan 2026 00:00:00 +0000Yongjie Xuehttps://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 +0000Yongjie Xuehttps://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/pg/ai-db-king/Mon, 01 Dec 2025 00:00:00 +0000Yongjie Xuehttps://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 +0000Yongjie Xuehttps://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/pg/pgext-cloud/Wed, 12 Nov 2025 00:00:00 +0000Yongjie Xuehttps://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 +0000Yongjie Xuehttps://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 +0000Yongjie Xuehttps://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 +0000Yongjie Xuehttps://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 +0000Yongjie Xuehttps://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/pg/pg-mirror-break/Mon, 07 Jul 2025 00:00:00 +0000Yongjie Xuehttps://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/pg/pgext-day/Wed, 09 Apr 2025 00:00:00 +0000Yongjie Xuehttps://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 +0000Yongjie Xuehttps://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 +0000Yongjie Xuehttps://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 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/pgfs/Leverage JuiceFS to turn PostgreSQL into a filesystem with PITR capabilities!https://www.yongjiexue.io/en/pg/pg-frontier/Fri, 24 Jan 2025 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/pg-frontier/Sharing some interesting recent developments in the PG ecosystem.https://www.yongjiexue.io/en/pg/pig/Sun, 29 Dec 2024 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/pig/Why would we need yet another package manager for PostgreSQL & extensions?https://www.yongjiexue.io/en/pg/pg-faint/Sat, 16 Nov 2024 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/pg-faint/Never deploy on Friday, or you’ll be working all weekend! PostgreSQL minor releases were pulled on the day of release, requiring emergency rollback.https://www.yongjiexue.io/en/pg/pg12-eol-pg17-up/Thu, 14 Nov 2024 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/pg12-eol-pg17-up/PG17 achieved extension ecosystem adaptation in half the time of PG16, with 300 available extensions ready for production use. PG 12 officially exits support lifecycle.https://www.yongjiexue.io/en/pg/pg-ext-repo/Sat, 02 Nov 2024 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/pg-ext-repo/PostgreSQL is eating the database world through extensibility. This post introduces the Pigsty extension repository, which packaged 390 PostgreSQL extensions at launch and keeps growing through the Pigsty extension catalog.https://www.yongjiexue.io/en/pg/pg-17/Thu, 26 Sep 2024 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/pg-17/PostgreSQL is now the world’s most advanced open-source database and has become the preferred open-source database for organizations of all sizes, matching or exceeding top commercial databases.https://www.yongjiexue.io/en/pg/pg-replace-mssql/Mon, 02 Sep 2024 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/pg-replace-mssql/PostgreSQL can directly replace Oracle, SQL Server, and MongoDB at the kernel level. Of course, the most thorough replacement is SQL Server - AWS’s Babelfish provides wire-protocol-level compatibility.https://www.yongjiexue.io/en/pg/pg-duckdb/Tue, 13 Aug 2024 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/pg-duckdb/Just like the vector database extension race two years ago, the current PostgreSQL ecosystem extension competition has begun revolving around DuckDB. MotherDuck’s official entry into the PostgreSQL extension space undoubtedly signals that competition has entered white-hot territory.https://www.yongjiexue.io/en/pg/pg-is-no1-again/Thu, 25 Jul 2024 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/pg-is-no1-again/The 2024 StackOverflow Global Developer Survey results are fresh out, and PostgreSQL has become the most popular, most loved, and most wanted database globally for the second consecutive year. Nothing can stop PostgreSQL from devouring the entire database world anymore!https://www.yongjiexue.io/en/pg/dify-setup/Sat, 22 Jun 2024 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/dify-setup/Dify is an open-source LLM app development platform. This article explains how to self-host Dify using Pigsty.https://www.yongjiexue.io/en/pg/pgcondev-2024/Mon, 17 Jun 2024 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/pgcondev-2024/Experience & Feeling on the PGCon.Dev 2024https://www.yongjiexue.io/en/pg/pg-17-beta1/Fri, 24 May 2024 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/pg-17-beta1/The PostgreSQL Global Development Group announces PostgreSQL 17’s first Beta version is now available. This time, PostgreSQL has truly burst the toothpaste tube!https://www.yongjiexue.io/en/pg/pg-eat-db-world/Mon, 04 Mar 2024 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/pg-eat-db-world/PostgreSQL isn’t just a simple relational database; it’s a data management framework with the potential to engulf the entire database realm.https://www.yongjiexue.io/en/pg/just-use-pg/Mon, 19 Feb 2024 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/just-use-pg/Whether production databases should be containerized remains a controversial topic. From a DBA’s perspective, I believe that currently, putting production databases in Docker is still a bad idea.https://www.yongjiexue.io/en/pg/paradedb/Sun, 18 Feb 2024 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/paradedb/ParadeDB aims to be an Elasticsearch alternative: “Modern Elasticsearch Alternative built on Postgres” — PostgreSQL for search and analytics.https://www.yongjiexue.io/en/pg/pg-scalability/Sat, 13 Jan 2024 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/pg-scalability/This article describes how Cloudflare scaled to support 55 million requests per second using 15 PostgreSQL clusters, and PostgreSQL’s scalability performance.https://www.yongjiexue.io/en/pg/pg-dbeng-2024/Fri, 05 Jan 2024 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/pg-dbeng-2024/DB-Engines officially announced today that PostgreSQL has once again been crowned “Database of the Year.” This is the fifth time PG has received this honor in the past seven years. If not for Snowflake stealing the spotlight for two years, the database world would have almost become a PostgreSQL solo show.https://www.yongjiexue.io/en/pg/pg-convention/Mon, 27 Nov 2023 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/pg-convention/No rules, no standards. Some developer conventions for PostgreSQL 16.https://www.yongjiexue.io/en/pg/pgss/Thu, 26 Oct 2023 00:00:00 +0000Nikolay Samokhvalovhttps://www.yongjiexue.io/en/pg/pgss/Query optimization is one of the core responsibilities of DBAs. This article introduces how to use metrics provided by pg_stat_statements for macro-level PostgreSQL query optimization.https://www.yongjiexue.io/en/pg/ferretdb/Sun, 08 Oct 2023 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/ferretdb/FerretDB aims to provide a truly open-source MongoDB alternative based on PostgreSQL.https://www.yongjiexue.io/en/pg/pg-filedump/Wed, 27 Sep 2023 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/pg-filedump/Backups are a DBA’s lifeline — but what if your PostgreSQL database has already exploded and you have no backups? Maybe pg_filedump can help you!https://www.yongjiexue.io/en/pg/pg-is-no1/Wed, 28 Jun 2023 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/pg-is-no1/StackOverflow 2023 Survey shows PostgreSQL is the most popular, loved, and wanted database, solidifying its status as the ‘Linux of Database’.https://www.yongjiexue.io/en/pg/llm-and-pgvector/Wed, 10 May 2023 00:00:00 +0000Yongjie Xuehttps://www.yongjiexue.io/en/pg/llm-and-pgvector/This article focuses on vector databases hyped by AI, introduces the basic principles of AI embeddings and vector storage/retrieval, and demonstrates the functionality, performance, acquisition, and application of the vector database extension PGVECTOR through a concrete knowledge base retrieval case study.