Duplicates items after filtering

[sebasira]

I having and issue with an Entity that has a @ManyToMany association. It's a Store and a StoreCategory many stores can be associated to many categories.

I have an Specification to search (like) the associated categories. And after:

dataTablesOutput = dataTableRepository.findAll(input, allColumnsSpecs);

I have this:

As you can see i have 2 recordsTotal and 3 recordsFiltered so after filtering I have more records than the total. And as you can see, items 0 and 1 are the same Entity.

What I'm doing to solve this is remove duplicates like this:

List<Integer> listWithDuplicates = Lists.newArrayList(5, 0, 3, 1, 2, 3, 0, 0);
List<Integer> listWithoutDuplicates = new ArrayList<>(
      new LinkedHashSet<>(listWithDuplicates));

Is this a bug or am I doing something wrong?

[darrachequesne]

Hi! Could you please provide a basic example reproducing the issue? You can fork the project here: https://github.com/darrachequesne/spring-data-jpa-datatables-sample/

A few things that I can think of:

• are you fetching the StoreCategory eagerly with @ManyToMany(fetch = FetchType.EAGER)?
• did you check the SQL logs with spring.jpa.properties.hibernate.show_sql=true?

Related: #87

[darrachequesne]

Closed due to inactivity, please reopen if needed.