Core Data: NSPredicate containing to-many relationship yields no results when using SQLITE store type?

I've figured out this issue eventually My query returned no results there were indeed no results. Tracing this back to where I was creating the objects and populating the realtionships with values I noticed that I was doing it wrong. I tried to do: provider.

Categories addObject : newCategory Which did not really add newCategory to the categories relationship After having realized that Core Data generates the accessors for to-many relationships automatically, I used the following to add newCategory: provider addCategoriesObject : newCategory This properly added newCategory to the relationship In addition to that I declared addCategoriesObject in Provider. H to suppress the compiler warning. This resolved the issue for me The only remaining caveat is that the compiler does not find the implementation of addCategoriesObject: and warns about "incomplete implementation".

I haven't figured out a way to suppress this warning too.

I've figured out this issue eventually. My query returned no results there were indeed no results. Tracing this back to where I was creating the objects and populating the realtionships with values I noticed that I was doing it wrong.

I tried to do: provider. Categories addObject : newCategory; Which did not really add newCategory to the categories relationship. After having realized that Core Data generates the accessors for to-many relationships automatically, I used the following to add newCategory: provider addCategoriesObject : newCategory; This properly added newCategory to the relationship.In addition to that I declared addCategoriesObject in Provider.

H to suppress the compiler warning. This resolved the issue for me. The only remaining caveat is that the compiler does not find the implementation of addCategoriesObject: and warns about "incomplete implementation".

I haven't figured out a way to suppress this warning too.

I know SQLite stores have problems with "ANY" fetches in some cases (I don't remember the exact ones). Maybe try modifying your search predicate to see if you get different results, e.g. NSPredicate *predicate = NSPredicate predicateWithFormat:@"categories LIKE %@", category.

I know SQLite stores have problems with "ANY" fetches in some cases (I don't remember the exact ones). Maybe try modifying your search predicate to see if you get different results, e.g.

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