FREN

#FF00AA


27 feb. 2009

How FriendFeed uses MySQL to store schema-less data • “Our datastore stores schema-less bags of properties (e.g., JSON objects or Python dictionaries). The only required property of stored entities is id, a 16-byte UUID. […] We index data in these entities by storing indexes in separate MySQL tables.” Interesting. It fascinates and frightens me that all those social, intrinsically relational web 2.0 services can never use JOINs because of scalability issues.

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