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用户,活动和群组都可以是tagged in a photo。在photo_tag的可用字段中,无法区分哪些主题ID是用户,事件或组。我只想返回在照片中标记的朋友列表,忽略不是我的朋友的事件,组和用户。获取我在照片中标记的朋友列表
有谁知道为什么这会返回0结果?
SELECT subject, xcoord, ycoord, text
FROM photo_tag
WHERE object_id = [PHOTO_OBJECT_ID]
AND subject IN (SELECT uid2 FROM friend WHERE uid1 = me())
即使...
SELECT subject, xcoord, ycoord, text
FROM photo_tag
WHERE object_id = [PHOTO_OBJECT_ID]
返回...
SELECT uid2 FROM friend where uid1 = me() and uid2 = [SUBJECT_USER_ID]