testing
How RollupDB Was Tested With Killed Processes and an Outside Reference
A database that throws data away on purpose had better be right about what it keeps. So RollupDB’s tests ask two questions over and over. Is the answer the same one …
Tag
How It Works
explainer
What an Aggregate Database Keeps When the Raw Events Are Gone
Most databases keep what you put in. An aggregate database doesn’t. It keeps what you’ll ask about later, and only that. You tell it up front: for this stream …