-- Author: fruit.com.cn
-- K109 清理历史遗留的「按整部剧点赞」数据。
-- 产品口径：收藏按剧，点赞与评论按集。客户端点赞入口只作用于当前剧集
-- （targetType = EPISODE），以下 DRAMA 记录均为 2026-10-21 15:49 之前的旧模型遗留。
BEGIN;

UPDATE content_like
SET deleted = 1
WHERE target_type = 'DRAMA' AND deleted = 0;

-- 剧级点赞数由这些行累加而来，随软删一并按实际剩余行数校准，避免详情页展示虚高数字。
UPDATE drama d
SET like_count = sub.cnt
FROM (
    SELECT d2.id, COUNT(l.id) AS cnt
    FROM drama d2
    LEFT JOIN content_like l
           ON l.target_type = 'DRAMA' AND l.target_id = d2.id AND l.deleted = 0
    GROUP BY d2.id
) sub
WHERE d.id = sub.id AND d.like_count IS DISTINCT FROM sub.cnt;

COMMIT;