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Re: Returning Rows in Procedure

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Pavel Stehule wrote:
Hello

you have to use a dynamic sql

look on statement

FOR r IN EXECUTE
or RETURN QUERY EXECUTE

Can u explain in the example, I find it difficult to understand .

I think we have to specify  return type while creating procedures.

Thanks
Regards

Pavel Stehule

2011/5/24 Adarsh Sharma <adarsh.sharma@xxxxxxxxxx>:
Dear all,

I need to return the rows of a table which was also created in that
procedure.

I know it is very easy when the table is existed before and we can specify
like this to return

create function a(integer) returns setof exist_table as $$

But it gives error when the table is also created in the procedure like
below :

create function a(integer) returns setof record as $$
declare
a text;
begin
execute 'insert into a values('asdd');
execute 'insert into a values('affffsdd');
execute 'insert into a values('affsdd');
execute 'insert into a values('ashjgdd');
execute 'insert into a values('asfjfgddd');

---Now i want to return the rows of a
DECLARE
 r a%ROWTYPE;
BEGIN
 FOR r in SELECT * FROM a
 LOOP
    RETURN NEXT r;
 END LOOP;
 RETURN;
 END;
END;
$$ LANGUAGE 'plpgsql' ;

ERROR:  relation "user_news_tmp2" does not exist
CONTEXT:  compilation of PL/pgSQL function "create_user_report2" near line
22

How to achieve this ?

Thanks & best Regards,
Adarsh

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