Thread

Re: pl/pgsql documentation

Darcy Buskermolen <darcy@ok-connect.com> — 2001-01-26T03:13:06Z

Ok this has since been sorted out, however I propose that it is better
layed out in the documentation, or at the veryleast an example is given.
i MUST be defined as a RECORD, and you then refrence the returned result as
RECORD.field, Also you can NOT have ()'s arouns the select statement.

CREATE FUNCTION test3(INT4) RETURNS INT4 AS '
  DECLARE
    loc  INT4;
    i    RECORD;
  BEGIN
    loc := $1;
    FOR i IN  SELECT id FROM major_groups LOOP
      loc := loc + i.id;
    END LOOP;
    RETURN loc;
  END;
' LANGUAGE 'plpgsql';

select test3(2);


>Short Description
>pl/pgsql documentation
>
>Long Description
>The following documentation does not apear to reflect real world use.
>
>[<<label>>]
>FOR record | row IN select_clause LOOP
>    statements
>END LOOP;
>
>(as snipped from
http://postgresql.readysetnet.com/users-lounge/docs/7.0/postgres/c40914117.h
tm)
>
>Sample Code
>CREATE TABLE major_groups(id SERIAL, name TEXT);
>INSERT INTO major_groups(name) VALUES 'one';
>INSERT INTO major_groups(name) VALUES 'two';
>INSERT INTO major_groups(name) VALUES 'three';
>
>CREATE FUNCTION test3(INT4) RETURNS INT4 AS '
>  DECLARE
>    loc  INT4;
>  BEGIN
>    loc := $1;
>    for i IN (select id from major_groups) loop
>      (
>      loc := $loc + $i;
>      )
>    end loop;
>    return $loc;
>  end;
>' language 'plpgsql';
>
>select test3(2);
>
>NOTICE:  plpgsql: ERROR during compile of test3 near line 10
>ERROR:  parse error at or near ";"
>
>
>No file was uploaded with this report
>
>
>