do not use $ne operator

In large collections, the $ne operator is very inefficient and can make queries slow. (https://docs.mongodb.com/manual/reference/operator/query/ne/ last paragraph).

I recently had to investigate performance troubles we’re having in one of our largest collections and it’s due to the use of this plugin. What I’d suggest is maybe always keeping deleted as false and then doing {$eq: false} to retrieve active documents.

[dsanel]

This type of changes can affect existing users and I really try to keep back compatibility with older versions. This is the main reason why I introduce new option use$neOperator so you can override default behavior (default is {use$neOperator: true}).

This new option will cover both scenarios.

https://github.com/dsanel/mongoose-delete/blob/master/test/index.js#L1598-L1654

Hope this will help @gabzim? 😉

[simplenotezy]

FYI I just tried doing a comparison, and inside a collection of +1mn documents, and I didn’t see any noticeable difference.

Am I missing something?

Using deleted: {$ne: true}

Using deleted: false