https://myblog-43r.pages.dev/tags/mysql/Recent content in MySQL on Song Kai's BlogHugozh-cnMon, 14 Sep 2026 00:00:00 +0800https://myblog-43r.pages.dev/posts/mysql-max-prepared-stmt-count/Mon, 14 Sep 2026 00:00:00 +0800https://myblog-43r.pages.dev/posts/mysql-max-prepared-stmt-count/理解 max_prepared_stmt_count 的作用、连接池带来的数量放大，以及 Error 1461 的排查和容量规划。https://myblog-43r.pages.dev/posts/mysql-binlog-canal-visibility-window/Mon, 17 Aug 2026 00:00:00 +0800https://myblog-43r.pages.dev/posts/mysql-binlog-canal-visibility-window/从 MySQL Group Commit、Binlog Dump 与 InnoDB engine commit 的执行顺序，解释 Canal 已收到完整事务、主库却短暂查不到数据的可见性窗口。