Hi all,
I am new to postgresql and I am trying to write a function which uses record
(r) to select from table and then proccess that record value.
CREATE OR REPLACE FUNCTION clean()
RETURNS integer AS $$
DECLARE
r record;
result integer:= 0;
BEGIN
FOR r in select distinct(id) from temp
loop
IF r.id is null or r.id =''
THEN result := 555;
else result := 999;
end if;
end loop;
RETURN result;
END;
$$ LANGUAGE plpgsql;
The problem here is 'r' is returning no records and I want to set result to
555 if r.id is null.
The function is created successfully but the result
select clean()
is always '0'.
I am unable to spot the problem.
May be this is trivial but I am struggling for it.
Can anybody suggest anything?
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