HQL: How to select all entities distinct by some column?

Question

A simple question:
In this example I need to retrieve all objects, but these objects must have distinct msgFrom fields.
When I use

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Answer 1

You can also use Criteria and Projection together :

Criteria criteria = session.createCriteria( MyEntity.class );
criteria.setProjection( Projections.distinct( Projections.property( "id" ) ) );

Hope it help someone.