Everyone Records the MySQL Audit Log. Nobody Reads It.
Everyone records audit logs. Almost nobody reads them, because reading them means grep on the database server, a cursor with no WHERE clause, or a log…
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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…
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…