const github.com/jackc/pgtype.XIDOID

4 uses

	github.com/jackc/pgtype (current package)
		pgtype.go#L26: 	XIDOID              = 28
		pgtype.go#L320: 	ci.RegisterDataType(DataType{Value: &XID{}, Name: "xid", OID: XIDOID})

	github.com/jackc/pgx/v4/stdlib
		sql.go#L101: 		pgtype.XIDOID:         1,
		sql.go#L657: 			case pgtype.XIDOID: