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It wasn't always an SQL system. SQL was added a year or two in its development (with lots of databases already live).
by toosleepy 9y ago
It wasn't always an SQL system. SQL was added a year or two in its development (with lots of databases already live).
- alexjscotti 9y agoYep. With a false start or two along the way. One of the most interesting things on this project was repeatedly changing engines while the plane was in the air.
- mponomar 9y agoWe've had databases literally up for 10+ years, through 5-6 major version upgrades. There's been one file format change that required downtime very early on.