我有一個使用 kotlin 的 Spring Boot v 2.1.8.RELEASE 項目。我們使用 postgres 數據庫，我有以下 JPA 查詢    @Query(value = " SELECT distinct grievance " +               " FROM Grievance grievance" +               " WHERE (grievance.auditProgramPortal=:auditProgramPortal AND grievance.owner.id=:organizationId) " +               " OR (grievance.status=:status AND grievance.auditProgramPortal=:auditProgramPortal)" +               " OR (grievance.auditProgramPortal=:auditProgramPortal AND grievance.owner.id=:organizationId)" +               " OR (grievance.auditProgramPortal=:auditProgramPortal AND grievance.publicSubmission=:publicSubmission)")fun findAnalystBodyGrievances(        auditProgramPortal: Boolean,        organizationId: Long,        status: GrievanceStatus,        publicSubmission: Boolean,        pageable: Pageable): Page<Grievance>當我按原樣運行它時 - 它工作得很好。當我對行業字段進行排序時（參見下面的對象） - 我收到以下錯誤org.postgresql.util.PSQLException: ERROR: for SELECT DISTINCT, ORDER BY expressions must appear in select list相關對象的片段如下申訴@Entity@Audited@Table(name = "grievance")class Grievance {    @Id    @GeneratedValue(strategy = GenerationType.IDENTITY)    @Column(name = "id")    var id: Long? = null    @Column(name = "title", nullable = false)    var title: String? = null    @Column(name = "description", columnDefinition = "text")    var description: String? = null    @Column(name = "public_description", columnDefinition = "text")    var publicDescription: String? = null    @Column(name = "related_to_identified_risk")    var relatedToIdentifiedRisk: Boolean? = null    @OneToOne    @JoinColumn(name = "industry_id")    var industry: Industry? = null  }行業@Entity@Table(name = "industry")class Industry {    @Id    @GeneratedValue(strategy = GenerationType.IDENTITY)    @Column(name = "id")    var id: Long? = null    @Column(name = "name", nullable = false, unique = true)    var name: String? = null    @Column(name = "color", nullable = false, unique = false)    var color: String? = null}