서브쿼리 alias orderby 방법이 있나요 ?

안녕하세요

querydsl 코딩하다 막히는부분이 있어 질문글 남깁니다.

return applyPagination(pageable, contentQuery -> contentQuery

        .selectDistinct(new QLocationDetailDto(
                member.idx.as("idx"),
                member.nickname.as("nickname"),
                member.memberImg.as("img"),
                ExpressionUtils.as(
                        JPAExpressions.selectDistinct(qaComment.qa.idx.count())
                                .from(qaComment)
                                .join(qaComment.qa, qa)
                                .where(qaComment.member.eq(member)), "answerCount"))
        )
        .from(member)
        .leftJoin(member.memberAddress, memberAddress)
        .leftJoin(member.qaComments, qaComment)
        .where(
                memberAddress.cityIdx.eq(cityIdx),
                member.grade.ne(QUIT),
                member.phoneNum.isNotNull(),
                memberEqualsRegion(regionIdx)
        )
        .orderBy("answerCount").desc() );

orderBy에 서브쿼리 이름명을 넣고싶은데 안되는거같아 문의드립니다

다른방법이 있을까요