Re: ECPG support for struct in INTO list

Michael Meskes írta:
> On Wed, Aug 05, 2009 at 11:08:26AM +0200, Boszormenyi Zoltan wrote:
>
>> I have looked at it. The code seems to be invalid.
>>
>
> Yes, it is, I was too lazy to make it valid. If you just allocate the memory
> for the variable in get_var() it becomes valid.
>

If you meant like this below, then ECPG segfaults on this too:

int *
get_var(void)
{
EXEC SQL BEGIN DECLARE SECTION;
int *myvar;
EXEC SQL END DECLARE SECTION;

myvar = malloc(sizeof(int));
EXEC SQL DECLARE mycur CURSOR FOR SELECT id INTO :myvar FROM a1
WHERE id = 1;
return myvar;
}

ecpg_type_name() aborts, ECPGt_array is unhandled
besides struct and union, it's called at the same place
in adjust_informix() as ECPGt_struct.

Attached is my modified test28.pgc. Compiling it
*without* -C INFORMIX makes it unusable, the variable
or the address where the data should be fetched into
doesn't even gets emitted in neither the DECLARE/OPEN
nor the FETCH callsites. I think this code should be valid
even in non-Informix-compatible mode.

> ... Just look at
> test/compat_informix/test_informix.pgc for a real and working example.
>

The example there is the other way around.
The variable, the DECLARE and FETCH commands
are in the outer main() function, and it calls a function called
openit() where the OPEN command is emitted, so that
example doesn't help here too much.

Best regards,
Zoltán Böszörményi

--
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----------------------------------
Zoltán Böszörményi
Cybertec Schönig & Schönig GmbH
http://www.postgresql.at/