正如here所述,在时区迁移之后,这些更改适用
之前' events_timezone'迁移:
' events_timezone'迁移:
我使用以下查询来查询用户社交网络中发生的每个事件的结束时间。
SELECT eid, end_time FROM event WHERE eid IN (SELECT eid FROM event_member WHERE start_time > '2012-08-27' AND uid IN (SELECT uid FROM user WHERE uid = me() OR uid IN (SELECT uid2 FROM friend WHERE uid1 = me()))) LIMIT 5000.
此查询在时区迁移之前有效,但无法在启用时区迁移的情况下返回任何数据。我非常怀疑这是因为至少有一个事件的end_time为null。
我如何克服这个问题,并为大多数事件获取end_dates? 我不介意为一两个事件设置一个空值,但我希望我的数据尽可能准确。
由于
答案 0 :(得分:0)
似乎添加了一个简单的
AND end_time != ''
做了这个伎俩
现在代码
SELECT eid, end_time FROM event WHERE eid IN (SELECT eid FROM event_member WHERE start_time > '2012-08-27' AND uid IN (SELECT uid FROM user WHERE uid = me() OR uid IN (SELECT uid2 FROM friend WHERE uid1 = me()))) AND end_time != '' LIMIT 5000
然而,我现在的事件仍然比以前少。为了获得相同的结果,我将不得不编写第二个查询来获取没有结束时间的事件