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我有以下plpgsql过程/函数,其中我尝试使用Auto_increment值获取一组记录。我编写了“位置”来存储自动增量,我猜这是错误的,但我不知道如何解决这个查询,我想添加一个新的计算字段。我认为我的意图很清楚。有人可以帮助我吗?,请!plpgsql过程:如何将auto_increment字段添加到查询中
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;
预先感谢您!
我得到的类型错误,说我不能投BIGINT改变创造功能 – galeonweb
的返回类型删除它,然后再次创建 –
或不管它是什么之前 –