hi there,

hi have a table called forum, and i've got this query:
this query select the messages and the number of replies to the
message individualy.
i'm trying to select the last post of each set of replies, like we see
in the foruns.
does anyone can help me
best regards,
etur

SELECT id, subject, to_char(post_time, 'YYYY.MM.DD @
HH24:MI:SS'::text) AS post_time,
content, login, messages.parent_id, replies.answered
   FROM ( SELECT f.id, f.subject, f.post_time, f.content, u.login, f.parent_id
           FROM forum f, system_users u
          WHERE f.parent_id IS NULL AND f.user_id = u.id) messages
   LEFT JOIN ( SELECT forum.parent_id, count(forum.id) AS answered
                FROM forum
               GROUP BY forum.parent_id) replies 
        ON messages.id = replies.parent_id;

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