tsqueryout(PG_FUNCTION_ARGS)
{
	TSQuery		query = PG_GETARG_TSQUERY(0);
	INFIX		nrm;

	if (query->size == 0)
	{
		char	   *b = palloc(1);

		*b = '\0';
		PG_RETURN_POINTER(b);
	}
	nrm.curpol = GETQUERY(query);
	nrm.buflen = 32;
	nrm.cur = nrm.buf = (char *) palloc(sizeof(char) * nrm.buflen);
	*(nrm.cur) = '\0';
	nrm.op = GETOPERAND(query);
	infix(&nrm, true);

	PG_FREE_IF_COPY(query, 0);
	PG_RETURN_CSTRING(nrm.buf);
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.