Tag: QRCode

Once Upon a Time in a Confined Database - PostgreSQL, QRCodes, and the Art of Backup Without a Network

In a room sealed tighter than a submarine vault, a PostgreSQL instance lived without network, external storage, or escape. No USB. No cloud. Just a screen—and a desperate need to back up critical data. Our solution? Modify pg_dump to stream QR codes at 60 frames per second, film the screen, and reassemble the dump from video. It wasn’t just secure—it was cinematic.