0

有人可以解释为什么以下查询：

> modified_after = DateTime.parse "2012-12-06T17:40:36+00:00"
> Contact.unscoped.where("updated_at > :time OR deleted_at > :time", {:time => modified_after})

还返回updated_at等于 的记录modified_after：

Contact Load (0.4ms)  SELECT "contacts".* FROM "contacts" WHERE (updated_at > '2012-12-06 17:40:36' OR deleted_at > '2012-12-06 17:40:36') => [
#<Contact id: 28, first_name: "John", last_name: "A", deleted_at: nil, created_at: "2012-12-06 17:40:36", updated_at: "2012-12-06 17:40:36", email: nil, notes: nil>, 
#<Contact id: 29, first_name: "Mark", last_name: "B", deleted_at: nil, created_at: "2012-12-06 17:40:36", updated_at: "2012-12-06 17:40:36", email: nil, notes: nil>,
 #<Contact id: 30, first_name: "Michael", last_name: "C", deleted_at: nil, created_at: "2012-12-06 17:40:36", updated_at: "2012-12-06 17:40:36", email: nil, notes: nil>
]
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1 回答 1

2

这些时间可能比查询时间大几毫秒。你运行的是什么版本的 Rails？查看这个错误，看看它是否相关：https ://github.com/rails/rails/issues/7385

于 2012-12-08T08:41:32.613 回答