Re: Extending SQL in C using VARIABLE length type

Oh, I see, does the VARSIZE length field have to be the total number of bytes occupied (including VARHDRSZ and the size
ofthe structure) or only the size that is used by "my" datatype? Then it would become pretty much obvious, why this is
notsupposed to work. 
I'll try it out then.

regards
    Carsten Kropf
Am 10.02.2010 um 12:04 schrieb Yeb Havinga:

> Carsten Kropf wrote:
>> Actually, I thought, I did this using the int32 variable called "dimension" which should be exactly this field.
> yes.
>> in = (PointND *) palloc(sizeof(float8) * dimensions + VARHDRSZ);
>> SET_VARSIZE(in, dimensions);
> What about
>
> len = sizeof(float8) * dimensions + VARHDRSZ;
> in = (PointND *) palloc0(len);
> SET_VARSIZE(in, len);
>
>
>
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