mongoose设置索引

const mongoose = require("./db");

const UserSchema = mongoose.Schema({
  name: {
    type: String,
    trim: true
  },
  age: Number,
  sn: {
    type: String,
    default: "123456",
    index: true //设置sn为索引
  },
  status: {
    type: Number,
    default: 1
  }
});

const UserModel = mongoose.model("User", UserSchema, "user");

module.exports = UserModel;