Wildcard Indexes

The five documents in this logs collection use seven different field names besides _id, and three of those names appear in only one document:

db.logs.insertMany([
  { timestamp: new Date("2023-06-01T12:00:00Z"), level: "info", message: "User login", user: "user1" },
  { timestamp: new Date("2023-06-01T12:05:00Z"), level: "error", message: "Failed payment", user: "user2", errorCode: 502 },
  { timestamp: new Date("2023-06-01T12:10:00Z"), level: "info", message: "Data export", user: "user3", exportId: "exp123" },

.....

Like the course? Get enrolled and start learning!

Reading Progress

0%

Vote for new content