Fix posts N+1

[ctrager]

SQL 1:select i_organization from issues where i_id = 4030
SQL 2:select posts.*, us_username
from posts
inner join users on us_id = p_created_by_user
where p_issue = 4030 order by p_id asc
SQL 3:select pa_id, pa_file_name, pa_file_length, pa_file_content_type
from post_attachments
where pa_post = 48 order by pa_id asc
SQL 4:select pa_id, pa_file_name, pa_file_length, pa_file_content_type
from post_attachments
where pa_post = 49 order by pa_id asc
SQL 5:select pa_id, pa_file_name, pa_file_length, pa_file_content_type
from post_attachments
where pa_post = 50 order by pa_id asc

[ctrager]

Not worth it. Performance is already so good, only 20 milliseconds with a lot of posts and attachments.