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Indexing for Sorted Data

Erik Darling digs into indexes and sorts:

Without things sorted the way you’re looking for them, it’s a lot like hitting shuffle until you get to the song you want. Who knows when you’ll find it, or how many clicks it will take to get there.

The longer your playlist is, well, you get the idea. And people get all excited about Skip Scans. Sheesh.

Anyway, let’s look at poor optimizer choices, and save the poor playlist choices for another day.

Click through for an interesting problem and solution.