我在这里尝试使用,
连接字符串:
CREATE FUNCTION looping() RETURNS TABLE(round text)
DECLARE
i RECORD;
BEGIN
FOR i IN select regexp_split_to_table('33,55,66,88', ',') as "asd"
LOOP
str:= str || ',' ||(select i."asd");
END LOOP;
END;
$$ LANGUAGE plpgsql;
这是真的还是我漏看了什么?