Schema#index() does't support alias

[teadrinker2015]

Prerequisites

• I have written a descriptive issue title
• I have searched existing issues to ensure the bug has not already been reported

Mongoose version

7.0.3

Node.js version

18.13.0

MongoDB server version

6

Typescript version (if applicable)

No response

Description

as below

Steps to Reproduce

const s = new mongoose.Schema({
    _id: { type: String, alias: 'foo' }
})

s.index({ foo: 1 }) // this doesn't work on '_id'

This is just for simplification. I know it doesn't make sense to index (b-tree) on _id which has already been done automatically. I actually use a lot of nested compound unique indexes. That's why I desperately need alias.

Expected Behavior

No response

[teadrinker2015]

Sorry, I realized alias is just a convenient virtual kind of getter, setter for Document instances. Closing this issue.