At Lead Bank, synchronous telemetry flushing caused intermittent exporter stalls to become user-facing 504 gateway timeouts. By leveraging AWS Lambda's Extensions API and goroutine chaining in Go,...

Something changed in MySQL 8.4 related to caching, and it is easy to miss, so it deserves a post.  And a subject adjacent to this is the missing Release Candidate for MySQL 8.4 LTS, with my...

In this post, I describe experiments on the write-versus-read costs of PostgreSQL's temporary buffers. For the sake of accuracy, the PostgreSQL functions set is extended with tools to measure...

在 Emacs 中，可以使用 keep-lines 和 flush-lines 命令过滤多行文本，前者保留包含关键字的行，后者排除这些行。这两个命令会直接修改文本内容，因此不应在正在使用的业务文件中直接使用。

MySQL 8.4 introduces a new privilege, FLUSH_PRIVILEGES, which allows database users to execute FLUSH PRIVILEGES statement without the need of RELOAD privilege.