-- drop function tst1 (int);
create function tst1 (int) returns int as
'begin
 return $1+1;
end;'
language 'plpgsql';


-- drop function tst2 (int);
create function tst2 (int) returns int as
$BODY$
begin
 return $1+1;
end;
$BODY$
language 'plpgsql';

CREATE OR REPLACE FUNCTION tst1(integer)
  RETURNS integer AS
$BODY$begin
 return $1+1;
end;$BODY$
  LANGUAGE plpgsql VOLATILE
  COST 100;
ALTER FUNCTION tst1(integer)
  OWNER TO postgres;

-- drop function tst3 (int);
create function tst3 (int) returns int as
$TTTT$
begin
 return $1+1;
end;
$TTTT$
language 'plpgsql';

CREATE OR REPLACE FUNCTION tst2(integer)
  RETURNS integer AS
$BODY$
begin
 return $1+1;
end;
$BODY$
  LANGUAGE plpgsql VOLATILE
  COST 100;
ALTER FUNCTION tst2(integer)
  OWNER TO postgres;