I'm not entirely certain what your expected input/output is.

Notice in the tutorial the "expand" function was used.
http://orientdb.com/docs/last/SQL-Functions.html#expand

so 
select expand(in()) from Restaurant where name = 'Dante'
instead of 
select in() from Restaurant where name = 'Dante'

orientdb> select in() from Restaurant where name = 'Dante'

+-------+----------------+
| @RID  | in             |
+-------+----------------+
| #-2:1 | [#11:0, #11:1] |
+-------+----------------+

the [2] in your screenshots is a shorted version of the [#11:0, #11:1] 
above.

so try:

orientdb> select expand( in() ) from Restaurant where name = 'Dante'

+-------+-------------+-------------+---------+
| @RID  | @CLASS      | Name        | out_Eat |
+-------+-------------+-------------+---------+
| #11:0 | Person      | Luca        | #12:0   |
| #11:1 | Person      | Bill        | #12:0   |
+-------+-------------+-------------+---------+


hope that is helpful! 

On Wednesday, April 15, 2015 at 3:12:19 AM UTC-7, KY wrote:
>
> Hi,
>
> Here all the details.
> - installed orientdb-2.0.6 on my windows 7-64bit
> - followed the tutorial: 
> http://orientdb.com/docs/last/Tutorial-Using-schema-with-graphs.html 
>  and created a new db: create database 
> plocal:../databases/WorkingWithGraphs admin admin plocal
> - connected to the new db: connect plocal:../databases/WorkingWithGraphs 
> admin admin
>
> - created Person, Restaurant and Eat classes:
> create class Person extends V
> create class Restaurant extends V
> create class Eat extends E
>
> - populated the db as described (create vertex, create edge)
>   
> - executed two queries:
> select from Restaurant => select-restaurant-in_Eat screenshot
> select in() from Restaurant where name = 'Dante' => select-in-restaurant 
> screenshot
>
> Thanks!
>
> On Wednesday, April 15, 2015 at 10:30:17 AM UTC+2, [email protected] 
> wrote:
>>
>> Hi,
>>
>> I've created the schema with Restaurant/Person/Eat and populated the base 
>> as described in the tutorial with release 2.0.6.
>>
>> I don't see any columns in Restaurant or Person called in_Eat or out_Eat.
>>
>> *select in() from Restaurant where name = 'Dante'* returns a list of 
>> Person as expected.
>>
>> Where do you see @class = null and what is this in/out = 0/1 ?
>>
>> Regards.
>>
>

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