PostgreSQL 使用 delete 删除数据的时候关联多个表

DELETE FROM game_pg_getpoint USING getpoint    
    WHERE (getpoint.fixflg = 1 OR game_pg_getpoint.immediately_flag=1)   
        AND game_pg_getpoint.memberid = getpoint.memberid   
        AND game_pg_getpoint.comment = getpoint.comment   
        AND game_pg_getpoint.thanksid = getpoint.thanksid   
        AND game_pg_getpoint.thanksname = getpoint.thanksname   
        AND game_pg_getpoint.getpoint_regist_date = getpoint.registdate