MySQL 8.0 to 8.4 upgrade on RDS: how to prove your data survived
Standard support for MySQL 8.0 on RDS ends on July 31. The in-place upgrade to 8.4 takes minutes and there is no way back. Here is…
Tag
data recovery
Time-travel for PostgreSQL: one SELECT vs a full restore vs replaying the WAL
PostgreSQL now lets you ask what a row contained at any moment in the past, using a normal SELECT. This post shows the idea with one…
How DB Trail guarantees a recovery would actually be correct: Data Validation
A backup you never restored is not really a backup, it is a hope. This is how DB Trail checks the whole recovery chain (capture, storage…
Time-travel SQL for MySQL, finally
A time ago I argued MySQL is the only major OLTP database without time-travel queries. Here’s what’s changed. Last month I mapped out how every major…