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mysql order by time


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Sveiki, ir divas tabulas



id, title, time

1, nosaukums 1, 12345

2, nosaukums 2, 12346

3, nosaukums 3, 12347

4, nosaukums 4, 12348



id, post_id, comment, time

1, 2, comment 1, 12348

2, 2, comment 2, 12350

3, 3, comment 3, 12352

4, 1, comment 4, 12353

5, 3, comment 5, 12354


Kā man jānorādas mysql, lai rādītu rezultāti no posts, bet rādītu by time no abām tabulām, ja tipa postam ir jauns komentārs viņš viņu rāda kā pēdējo, kaut arī ir jaunāki posti.

"SELECT p.id,p.title,p.time FROM posts AS p LEFT JOIN comments AS c ON c.post_id = p.id GROUP BY p.id ORDER BY p.time DESC"

"ORDER BY p.time DESC" šajā vietā jāiemet kautkā ja (c.time > p.time ? c.time : p.time)


Ceru, ka sapratāt domu

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