It's early 2005, and this pilot fish works for an online retailer -- and pays close attention to the chatter about website development.Spring 2005:Manager: "Do we need a database administrator for the new attribute key-value design"Software developer: "No, we won't ever need more than 10 attribute key-val pairs.
The business will never get bigger than that.
Besides, storing data in columns means it's contiguous on disk and one select will mean one read!"Summer 2005:Developer: "Hmm, why is the database so slow I wonder if it's the 100 attribute key-value pairs.
We now have 100 columns instead of 10, but that should be fine."