Function specialAttNum

src/backend/parser/parse_relation.c:3765–3774

specialAttNum() * * Check attribute name to see if it is "special", e.g. "xmin". * - thomas 2000-02-07 * * Note: this only discovers whether the name could be a system attribute. * Caller needs to ensure that it really is an attribute of the rel. */

 * Caller needs to ensure that it really is an attribute of the rel.
 */
static int
specialAttNum(const char *attname)
{
	const FormData_pg_attribute *sysatt;

	sysatt = SystemAttributeByName(attname);
	if (sysatt != NULL)
		return sysatt->attnum;
	return InvalidAttrNumber;
}


/*