Spring JPA Criteria API按json列表在名称列表中搜索

Question

我正在尝试创建按json列表在列表中搜索的JPA规范

@Override
public Predicate toPredicate(Root<T> root, CriteriaQuery<?> criteriaQuery, CriteriaBuilder builder) {

Expression<String> unitsNames = builder.function("json_array_elements", String.class, 
                                      root.<String>get("unitsNames"));

return builder.function("json_extract_path_text", String.class, 
                               unitsNames, builder.literal("en"))
                    .in(this.unitsNames);
}

我有例外：

Internal Exception: org.postgresql.util.PSQLException: 
ERROR: set-returning functions are not allowed in WHERE

Json Array应该类似于

[{"en":"D1","ar":"D1"},{"en":"D2","ar":"D2"}]

和UnitArray：

D1 , D2

当尝试将其用作sql时，它的作用类似于

SELECT *
FROM TABLENAME
inner join json_array_elements(unitNames) data
on ((json_extract_path_text(data, 'en')) in ('D1'));

效果很好，但我不知道如何在postgres条件API中使用别名