jpql中的QuerySyntaxException情况

Question

我需要按日期查找实体，因此我在JpaRepository的方法上写了这个查询注释：

@Query(
        "select distinct e " +
        "from SomeEntity e " +
        "join e.someChild c " +
        "where e.someField IN :types " +
        "and " +
            "case " +
                "when e.someDate is null then (:month = 12 and :day = 31) " +
                "else (month(e.someDate) = :month and day(e.someDate) = :day) " +
            "end"
)
List<SomeEntity> findSomeEntities(@Param("month") int monthValue, @Param("day") int dayOfMonth, @Param("types") Set<SomeSubclass> allowed);

Intellij指示else和(之间的编译错误：'(', <expression>, <operator>, END, FUNCTION or identifier expected, got '('。编译时会发生以下情况：

Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException: unexpected AST node: case near line 1, column 169

编辑：

这是完整的匿名查询：

@Query(
        //@formatter:off
        "select distinct g " +
        "from SomeEntity g " +
        "join g.chileOne n " +
        "join g.childTwo l " +
        "join n.childThree ga " +
        "where g.someEntityTyp.typ IN :types " +
        "and " +
                "case " +
                    "when l.someDate is null then (:month = 12 and :day = 31) " +
                    "else (month(l.someDate) = :month and day(l.someDate) = :day) " +
                "end"
        //@formatter:on
)
List<SomeEntity> findSomeEntity(@Param("month") int monthValue, @Param("day") int dayOfMonth, @Param("types") Set<SomeEntityTyp.Typ> relevantSomeEntityTypes);

错误指向case关键字的开头。

当someDate不为null时，此方法工作正常：

@Query(
        //@formatter:off
        "select distinct g " +
        "from SomeEntity g " +
        "join g.chileOne n " +
        "join g.childTwo l " +
        "join n.childThree ga " +
        "where g.someEntityTyp.typ IN :types " +
        "and month(l.someDate) = :month " +
        "and day(l.someDate) = :day")
        //@formatter:on
)
List<SomeEntity> findSomeEntity(@Param("month") int monthValue, @Param("day") int dayOfMonth, @Param("types") Set<SomeEntityTyp.Typ> relevantSomeEntityTypes);