public static <T> JDOQuery<T> selectFrom(EntityPath<T> expr) {
        return select(expr).from(expr);
    }
Create a new detached {@link JDOQuery} instance with the given projection

@param expr projection and source
@param <T>
@return select(expr).from(expr)
querydsl-jdo/src/main/java/com/querydsl/jdo/JDOExpressions.java