vivekfe

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

vivekfe

// Start the MongoDB Container 

docker run --name mongo -d mongo
docker exec -i mongo sh -c 'mongoimport -d oreilly -c students --drop --type json' < students.json

// Check that Mongodb adds a projection on non-used fields

db.students.explain("executionStats").aggregate( [
    { $group: { _id: "$grade", frequency: { $sum: 1 } } },
    { $match: { "frequency": { $gt : 10 } } }