https://www.yongjiexue.io/en/tags/mysql/Recent content in MySQL on Yongjie XueHugoen-USFri, 31 Jul 2026 00:00:00 +0000https://www.yongjiexue.io/en/cloud/rds-mysql-crash/Fri, 31 Jul 2026 00:00:00 +0000https://www.yongjiexue.io/en/cloud/rds-mysql-crash/A reader’s RDS MySQL instance failed over twice in five days: the cloud provider’s own back-end monitoring query brought it down, and the instance failed again with the same symptoms after the provider promised to disable that collector.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/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/db/mysql-baijiu/Sat, 20 Dec 2025 00:00:00 +0000https://www.yongjiexue.io/en/db/mysql-baijiu/MySQL is to the internet what baijiu is to China: harsh, hard to swallow, yet worshipped because culture demands obedience. Both are loyalty tests—will you endure discomfort to fit in?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/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/db/poker-24/Tue, 03 Dec 2024 00:00:00 +0000https://www.yongjiexue.io/en/db/poker-24/A fun but devious challenge: solve the 24-point card game in SQL. Here is the PostgreSQL answer.https://www.yongjiexue.io/en/pg/pg-replace-mssql/Mon, 02 Sep 2024 00:00:00 +0000https://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/db/bad-mysql/Thu, 28 Dec 2023 00:00:00 +0000https://www.yongjiexue.io/en/db/bad-mysql/MySQL’s transaction ACID has flaws and doesn’t match documentation promises. This may lead to serious correctness issues - use with caution.