Re: UUID datatype GiST index support

Hi!

On Mon, Aug 22, 2011 at 2:54 PM, Misa Simic <misa.simic@gmail.com> wrote:

static int

m4_uuidkey_cmp(const void *a, const void *b)

{

uuidKEY    *ia = (uuidKEY *) (((Usrt *) a)->t);

uuidKEY    *ib = (uuidKEY *) (((Usrt *) b)->t);

int res;

res = DatumGetInt32(DirectFunctionCall2(uuid_cmp, UUIDPGetDatum(ia->upper), UUIDPGetDatum(ia->upper)));

if (res == 0)

return DatumGetInt32(DirectFunctionCall2(uuid_cmp, UUIDPGetDatum(ia->upper), UUIDPGetDatum(ib->upper)));

return res;

}

Getting error: aggregate error used where an integer was expected!

Seems that you need the address-of operator before ia->upper and ia->lower (likely one of operands should be "ia->lower"). UUIDPGetDatum except pointer as an argument, i.e. UUIDPGetDatum(&ia->upper).

It would be a lot appreciated if anyone could help me and suggest the best way to make Gist support for UUID datatype...