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neumino/gist:7903626

Created December 11, 2013 01:30
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@bencevans - Twitter - 2013/12/10
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gistfile1.js
r.db("ScrobbleGraph").table("scrobbles").groupedMapReduce(
function(doc) { return doc("date").date() },
function(doc) { return [doc] },
function(left, right) { return left.add(right)}
)
// It's better to use just an orderBy and group on the client because
// - The database won't have to keep everything in memory
// - It's faster because of the index
r.db("ScrobbleGraph").table("scrobbles").orderBy({index: "date"})
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