plpgsql 프로 시저 : 쿼리에 auto_increment 필드를 추가하는 방법

Question

다음 plpgsql 프로 시저/함수에서 Auto_increment 값을 사용하여 레코드 세트를 가져 오려고합니다. 필자는 autoincrement를 저장하기 위해 "position"필드를 만들었습니다. 잘못된 것 같습니다. 그러나이 쿼리를 어떻게 계산할지 계산할 필드를 추가하고 싶지 않습니다. 내 의도가 분명하다고 생각합니다. 누구든지 나를 도울 수 있습니까?, 제발!

CREATE OR REPLACE FUNCTION pra2.GetRankingOfPilots(IN sea pra2.season.name%type) 
RETURNS setof RECORD AS $BODY$ 
DECLARE 
    r RECORD; 
    fila integer; 
BEGIN 
    fila:=0; 
    FOR r IN SELECT 
      position, 
      driver.name driver, 
      constructor.name constructor, 
      season.name season, 
      CAST(sum(runs.points) AS int) totalpuntos 
     FROM 
      pra2.hired hired 
     INNER JOIN pra2.constructor on hired.name_constructor = pra2.constructor.name 
     INNER JOIN pra2.driver on hired.num_driver = pra2.driver.num 
     INNER JOIN pra2.runs on pra2.driver.num=pra2.runs.num_driver 
     INNER JOIN pra2.race on pra2.runs.name_race=pra2.race.name AND pra2.runs.season_fk=pra2.race.season_fk AND pra2.runs.season_fk=pra2.race.season_fk 
     INNER JOIN pra2.season on hired.name_season=pra2.season.name AND pra2.race.season_fk=pra2.season.name 
     WHERE 
      pra2.season.name=sea 
     GROUP BY 
      season,driver,constructor 
     ORDER BY 
      TotalPuntos Desc 
    LOOP 
     fila:=fila+1; 
     r.posicion:=fila; 
     RETURN NEXT r; 
    END LOOP; 
RETURN; 
END; 
$BODY$ 
LANGUAGE plpgsql; 

감사합니다.

Answer 1

시도 :

SELECT 
      row_number() over() position, 
      driver.name driver, 
      constructor.name constructor, 
      season.name season, 
      CAST(sum(runs.points) AS int) totalpuntos 
     FROM 
      pra2.hired hired 
     INNER JOIN pra2.constructor on hired.name_constructor = pra2.constructor.name 
     INNER JOIN pra2.driver on hired.num_driver = pra2.driver.num 
     INNER JOIN pra2.runs on pra2.driver.num=pra2.runs.num_driver 
     INNER JOIN pra2.race on pra2.runs.name_race=pra2.race.name AND pra2.runs.season_fk=pra2.race.season_fk AND pra2.runs.season_fk=pra2.race.season_fk 
     INNER JOIN pra2.season on hired.name_season=pra2.season.name AND pra2.race.season_fk=pra2.season.name 
     WHERE 
      pra2.season.name=sea 
     GROUP BY 
      season,driver,constructor 
     ORDER BY 
      TotalPuntos Desc