overleaf/services/web/migrations/20210721081758_create_history_display_index.js

const Helpers = require('./lib/helpers')

exports.tags = ['saas']

const indexes = [
  {
    key: {
      'overleaf.history.display': 1,
    },
    name: 'overleaf.history.display_1',
  },
]

exports.migrate = async client => {
  const { db } = client
  await Helpers.addIndexesToCollection(db.projects, indexes)
}

exports.rollback = async client => {
  const { db } = client
  await Helpers.dropIndexesFromCollection(db.projects, indexes)
}