tvl-depot/migrations/2018-04-14-145711_create_index_view/up.sql

16 lines
479 B
MySQL
Raw Normal View History

-- Create a simple view that returns the list of threads ordered by
-- the last post that occured in the thread.
CREATE VIEW thread_index AS
SELECT t.id AS thread_id,
t.title AS title,
t.author_name AS author_name,
t.posted AS posted,
p.id AS post_id
FROM threads t
JOIN (SELECT DISTINCT ON (thread_id) id, thread_id
FROM posts
ORDER BY thread_id, id DESC) AS p
ON t.id = p.thread_id
ORDER BY p.id DESC;