mongodb populate in same collection
async function lookup() { const times = []; for (let i = 0; i < 10; ++i) { let startTime = Date.now(); const orders = await Order.aggregate([ {$match: {completed: true}}, { $lookup: { from: 'users', localField: 'user', foreignField: '_id', as: 'user' } } ]) times.push(Date.now() - startTime); } return times;}
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async function populate() { const times = []; for (let i = 0; i < 10; ++i) { let startTime = Date.now(); const orders = await Order.find({completed: true}).populate('user'); times.push(Date.now() - startTime); } return times;}
Thank you!
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