Обсуждение: Passing composite type to function fails...

Mahlzeit.

Is it a bug or a feature?

Wilhelm

-- Code --

CREATE TYPE t_test AS (
  a INTEGER,
  b INTEGER
);

CREATE FUNCTION f_init1 ( INTEGER ) RETURNS t_test AS '
DECLARE
  dummy ALIAS FOR $1;
  local t_test;
BEGIN
  local.a :=3D 1;
  local.b :=3D 2;
  RETURN local;
END;
' LANGUAGE 'plpgsql' IMMUTABLE;

CREATE FUNCTION f_init2 ( t_test ) RETURNS t_test AS '
DECLARE
  dummy ALIAS FOR $1;
  local t_test;
BEGIN
  local.a :=3D 1;
  local.b :=3D 2;
  RETURN local;
END;
' LANGUAGE 'plpgsql' IMMUTABLE;

CREATE FUNCTION f_test_the_functions () RETURNS void AS '
DECLARE
  i INTEGER;
  t t_test;
  r t_test;
BEGIN
  -- Using function with INTEGER-parameter
  i :=3D 1;
  SELECT INTO r * FROM f_init1( i ); -- This works.

  -- Using function with composite-type-parameter
  t.a :=3D 2;
  t.b :=3D 3;
  SELECT INTO r * FROM f_init2( t ); -- ERROR: Row =BBt=AB does not exist.=
=20

  RETURN;
END;
' LANGUAGE 'plpgsql' IMMUTABLE;

select f_test_the_functions();