TypeScript returns an error if you run a query on a subclass field of a model

[nikzanda]

Prerequisites

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

Mongoose version

8.6.0

Node.js version

20.10.0

MongoDB server version

6.0.2

Typescript version (if applicable)

5.5.4

Description

First of all, I find the new feature introduced by the minor release 8.6.0 very useful, which checks if fields exist in the main interface of the model when running queries! It’s a great idea!

However, I encountered a problem with models and subclasses: before 8.6.0, it was possible to run a query on a subclass field from the main model, but now TypeScript reports an error (solved old issue).

interfaces:

query:

Steps to Reproduce

Reproduction link: https://stackblitz.com/edit/vitejs-vite-jkwelc?file=src%2Findex.ts

Expected Behavior

Although the main interface does not include the fields of the subclasses, you should still be able to run a query from the main model, as it worked prior to version 8.6.0.

[vkarpov15]

This issue will be fixed by #14874 .

This is another good point for #14874 re: #14764: Mongoose does support automatically inferring discriminator schema if discriminator key is set in the query filter. So if we implement #14764, we would need to come up with a way to support that.

[vkarpov15]

Fixed by #14874