Function PQgetvalue

src/interfaces/libpq/fe-exec.c:3680–3686

* PQgetvalue: * return the value of field 'field_num' of row 'tup_num' */

 *	return the value of field 'field_num' of row 'tup_num'
 */
char *
PQgetvalue(const PGresult *res, int tup_num, int field_num)
{
	if (!check_tuple_field_number(res, tup_num, field_num))
		return NULL;
	return res->tuples[tup_num][field_num].value;
}

/* PQgetlength:
 *	returns the actual length of a field value in bytes.