是否可以查看用户浏览过的主题？

社区 数据与报告
2

也许可以像这样：

谁（已登录用户）查看特定主题

-- [参数]
-- int :topic_id = 1

SELECT
    title,
    viewed_at,
    tv.user_id
FROM topics t
LEFT JOIN topic_views tv
    ON t.id = tv.topic_id
WHERE category_id IS NOT NULL
    AND tv.user_id IS NOT NULL
    AND t.id = :topic_id
ORDER BY viewed_at DESC
LIMIT 1000

用户最近 100 条主题浏览记录

-- [参数]
-- int :user_id = 1

SELECT
    tv.user_id,
    title,
    viewed_at,
    views,
    t.user_id
FROM topics t
LEFT JOIN topic_views tv
    ON t.id = tv.topic_id
WHERE category_id IS NOT NULL
    AND tv.user_id = :user_id
ORDER BY viewed_at DESC
LIMIT 100