I needed to find all the records in mongo db within two date ranges using Mongo Driver[3.4.0] for Java.

Example:
I have **books** Collection.

```
{
    "_id" : ObjectId("5acb40d27d63b61cb002bafe"),
    "title" : "WingsOfFire",
    "pub-date" : ISODate("2013-10-02T00:00:00.000Z"),
    "rel-date" : ISODate("2013-11-02T00:00:00.000Z")
}

```

Like above I have 100s of documents.

I need to find all records wherein pub-date > rel-date.

I am using Mongo DB version 3.2.6

I tried to use *$expr* operator but it seems to work with only Mongo 3.6+

Not able find cleaner solutions for above requirement.

Please clarify.