RealmResults Query Returns Partial Results - Android

Question

I am having a very strange behavior while querying data from my Realm table.

Example

I have an object called OrderItem defined like this:

public class OrderItem extends RealmObject{

   @PrimaryKey
   @Index
   private long id;

   //the rest of the fields here
   //then getters and setters as usual
}

The issue is quite unpredictable; because sometimes:

RealmResults<OrderItem> items = realm.where(OrderItem.class)
       .equalTo("order_id", order_id)
       .findAllSorted("id");

returns incomplete results - especially by 1 row;

This has been driving me nuts because I cannot exactly find out how it returns such partial results; doesn't matter how many rows I have in the said table!

NOTE

A while back, I was using a String type as the primary key in my table until I learned how bad an idea that was when trying to increment values; so I switched to long type which is fine; except now I get partial results from the query above!

I will truly appreciate your help on this! Any ideas, tips that could help me mitigate this issue.

Thanks in advance!

Eenvincible!

Answer 1

Have you cleared the database after switching primary key type? You can do this with:

Realm.deleteRealm();

I had some similar troubles with Realm database. Deleting and creating new database helped.