Databases

The databases I'm learning — both document and relational stores. For each one I share my notes from the data model on top all the way down to the storage engine and index structures, because that's where real understanding lives.

MongoDBDocuments and BSON down to the WiredTiger storage engine and B-tree indexes, plus aggregation, modeling, and scaling.PostgreSQLsoonThe relational model, JOINs, ACID, MVCC and the query planner — deliberately contrasted with MongoDB. Coming next.