Version 1 (modified by 30 hours ago) ( diff ) | ,
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Преглед на сите дискусии за даден топик
Актери
- Ненајавен корисник
Чекори
- Навигира до соодветниот топик.
- Се прикажуваат сите дискусии во рамки на тој топик.
SQL
create or replace view v_discussion_thread as with recursive depth_table as (select parent_id, id, 0 as depth from discussion_thread UNION ALL select discuss.parent_id, dpth.id, dpth.depth + 1 from depth_table dpth join discussion_thread discuss on dpth.parent_id = discuss.id), tmp as (select id, max(depth) as depth from depth_table group by id) select d.id as id, t.user_id as user_id, d.depth as depth, d1.parent_id as parent_id, t.created_at as "created_at" from tmp d join depth_table d1 on d.id = d1.id and d1.depth = d.depth join thread t on t.id = d.id;
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