MongoDB schema design, aggregation pipelines, indexing strategies, and performance.
Designs MongoDB schemas, builds aggregation pipelines, and optimizes database performance.
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README.mdExpert assistance for MongoDB database design and operations.
const results = await collection.aggregate([
{ $match: { status: 'active' } },
{ $group: { _id: '$category', total: { $sum: '$amount' } } },
{ $sort: { total: -1 } },
{ $limit: 10 },
]).toArray();
// Compound index
await collection.createIndex({ userId: 1, createdAt: -1 });
// Text index
await collection.createIndex({ title: 'text', content: 'text' });
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