Hi,
I have something strange here, with Postgresql 8.1.4 under Linux ES 4, installed from the PG Group binaries:
If I run this script:
----------------
CREATE OR REPLACE FUNCTION foo() RETURNS void
AS
$$
my $val;
sub init
{
$val = @_[0];
elog(NOTICE, "1: @_[0]\n");
}
&init(12);
elog(NOTICE, "2: $val\n");
$$
LANGUAGE 'plperl';
select * from foo();
----------------
I get in return something correct:
----------------
NOTICE: 1: 12
NOTICE: 2: 12
Total query runtime: 63 ms.
Data retrieval runtime: 62 ms.
1 rows retrieved.
----------------
But then, if I simply call the function, with:
----------------
select * from foo();
----------------
I get:
----------------
NOTICE: 1: 12
NOTICE: 2:
Total query runtime: 63 ms.
Data retrieval runtime: 62 ms.
1 rows retrieved.
----------------
$val variable is missing.
Even more strange: if I replace "my $val;" with "$val;", this does not happen at all:
----------------
CREATE OR REPLACE FUNCTION foo() RETURNS void
AS
$$
$val;
sub init
{
$val = @_[0];
elog(NOTICE, "1: @_[0]\n");
}
&init(12);
elog(NOTICE, "2: $val\n");
$$
LANGUAGE 'plperl';
----------------
Now I can call the function with
----------------
select * from foo();
----------------
it works as expected:
----------------
NOTICE: 1: 12
NOTICE: 2: 12
Total query runtime: 390 ms.
Data retrieval runtime: 797 ms.
1 rows retrieved.
----------------
Am I missing something maybe? It sounds like a bug with lexical variables to me...
Cheers,
----------------------------------
Philippe Lang, Ing. Dipl. EPFL
Attik System
rte de la Fonderie 2
1700 Fribourg
Switzerland
http://www.attiksystem.ch
Tel: +41 (26) 422 13 75
Fax: +41 (26) 422 13 76
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