Incorrect query in dev

[ReinierKoops]

The dev-query (line 484, 485):
"SELECT DISTINCT winner_name , winner_rank FROM matches ORDER BY winner_age LIMIT 3"
generates the wrong output, which is related to the question:
"What are the names and ranks of the three youngest winners across all matches?"

To make the query match with the question the SQL should be:
SELECT winner_name, winner_rank FROM matches GROUP BY winner_name ORDER BY winner_age LIMIT 3

[ReinierKoops]

Another query:

"SELECT T1.last_name FROM Owners AS T1 JOIN Dogs AS T2 ON T1.owner_id = T2.owner_id WHERE T2.age = ( SELECT max(age) FROM Dogs )"

This is a select statement that retrieves the oldest dog; While the dev.JSON in NL describes it as the youngest dog.

[ReinierKoops]

tables.json:

baseball_1:

• has no primary key's defined.

This file contains a list of all tables and if they have a primary key (or not), I would guess that for some of these tables, which have no primary key this should not be the case.
p1_table_attributes.csv