RES: bug? Drop column and SQL functions

  I have a comment on something like that to: Why - when creating a view
using explicit * on select - postgresql reads all the fields in the query
and especify them one by one on the view definition? Developers always have
to check every view after changing a table definition to be certain it does
not need to be recreated.
   That's a bug or a feature?
  Regards,  Thiago Moesch


-----Mensagem original-----
De: pgsql-hackers-owner@postgresql.org
[mailto:pgsql-hackers-owner@postgresql.org]Em nome de Alvaro Herrera
Enviada em: terça-feira, 28 de outubro de 2003 15:28
Para: Hackers
Assunto: [HACKERS] bug? Drop column and SQL functions


Someone showed me this simple example:

regression=# CREATE TABLE test (a TEXT, b TEXT);
CREATE TABLE
regression=# INSERT INTO test VALUES ('foo', 'bar');
INSERT 17145 1
regression=# CREATE FUNCTION foo() RETURNS SETOF test as 'SELECT * FROM
test' LANGUAGE sql;
CREATE FUNCTION
regression=# SELECT * FROM foo(); a  |  b
-----+-----foo | bar
(1 registro)

regression=# ALTER TABLE test DROP COLUMN a;
ALTER TABLE
regression=# SELECT * FROM foo();
ERROR:  query-specified return row and actual function return row do not
match

(note that I didn't "specify a return record" -- SETOF test should only
consider non-dropped columns ...)

--
Alvaro Herrera (<alvherre[a]dcc.uchile.cl>)
"La virtud es el justo medio entre dos defectos" (Aristóteles)

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