我试图用db.QueryRow()将参数传递给Golang中的以下函数,但它似乎不接受通常的吗?。
DROP FUNCTION IF EXISTS upsertplatform(pToken varchar);
CREATE FUNCTION upsertplatform(pToken varchar) RETURNS int as $$
DECLARE
_id int = NULL;
BEGIN
LOOP
UPDATE public.platform SET platformToken = pToken WHERE userID = 3 AND platformID = 2 RETURNING id into _id;
IF NOT FOUND THEN
BEGIN
INSERT INTO public.platform (userID, platformID, platformToken) VALUES (3, 2, '1234-123-bbasd') RETURNING id into _id;
EXCEPTION WHEN unique_violation THEN
UPDATE public.platform SET platformToken = '1234-123-bbasd' WHERE userID = 3 AND platformID = 2 RETURNING id into strict _id;
END;
END IF;
EXIT WHEN _id IS NOT NULL;
END LOOP;
RETURN 1;
END
$$ LANGUAGE PLPGSQL;
这是我遇到问题的查询,我不确定如何将参数传递给它:
res := db.QueryRow(`SELECT * FROM upsertplatform( ? )`, "test123")
我该如何正确地做到这一点?
答案 0 :(得分:1)
Postgres驱动程序对参数使用位置表示法,$ 1,$ 2,......所以只需SELECT * FROM upsertplatform($1)
。