问如何创建包含多个字段的唯一索引，其中一个字段是外键

EN

import { Column, Entity, Index, JoinColumn, ManyToOne, PrimaryColumn } from "typeorm";
import { PersonPlayer } from "./PersonPlayer";
import { Team } from "./Team";

    @Entity()
    @Index("player_id_UNIQUE", ["player_id", "period", "year"], { unique: true })
    export class Earning {

        @PrimaryColumn({length: 36})
        id: string;

        @Column({nullable: true})
        year: number;

        @Column({type: 'decimal', nullable: true})
        amount: number;

        @Column({nullable: true, length: 45})
        period: string;

        @ManyToOne(() => Team, {nullable: true})
        @JoinColumn({name: 'team_id'})
        team: Team;


        @ManyToOne(() => PersonPlayer, {nullable: true})
        @JoinColumn({name: 'player_id'})
        player: PersonPlayer;

        @Column({nullable: true, length: 45})
        dtype: string;

    }