The strange thing about it is, that the gc.comment_type is being recognized when I exchange the subquery
(select avg(wert) from general_bewertung where comment_id in (select comment_id from general_comments where user_id = gc.user_id
and comment_type = gc.comment_type)) as durchschnitt_bewertung,
to
(select max(comment_id) from general_comments where user_id = gc.user_id and comment_type = gc.comment_type) as durchschnitt_bewertung,
Is this possibly a postgres bug???
