Stampede-GithubQuery-MongoDB-D

db.events.aggregate(
	[
   		{ $match: { "payload.action": { $exists: true } } },
   		{ $group: { _id: "$payload.action", total: { $sum: 1 } } },
   		{ $sort: { total: 1 } }
	],
	{ allowDiskUse: true, cursor: { batchSize: 100000000 } }
);