New FilterQuery type (from 8.6.0) disallows $expr at the query root (type error)

[Anton-Plagemann]

Prerequisites

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

Mongoose version

6.8.0

Node.js version

20.15.0

MongoDB server version

7.0.9

Typescript version (if applicable)

5.5.4

Description

Starting from mongoose 8.6.0, this raises a type error:

import type { FilterQuery } from "mongoose";

const filter: FilterQuery<{ owners: string[] }> = {
  $expr: { $lt: [{ $size: "$owners" }, 10] },
};

Object literal may only specify known properties, and '$expr' does not exist in type 'FilterQuery<{ owners: string[]; }>'.ts(2353)

I think its related to the changes from #14764.

Steps to Reproduce

Install mentioned versions and create a file with the snippet.

Expected Behavior

No type errors, as its a valid MongoDB query.

[sapirMalAccessibe]

I’m also having an issue with upgrading to 8.6 because it doesn’t recognize the field key in the filter of an updateMany query, which is part of the model.

await this.updateMany({ url: { $in: urlsToCheck } }, { $set: { lastCheckAt: new Date() } });

error TS2353: Object literal may only specify known properties, and 'url' does not exist in type 'RootFilterQuery'.