ruby-on-rails - Rails - Postgres - 在类型转换之前提取属性

Question

有没有类似于:

Model.pluck(:id, :created_at_before_type_cast) # this does not work :)

因为当我这样做的时候:

Model.pluck(:id, :created_at)

我得到:

[1, 22 Feb 2018 13:15:33 CET +01:00]
...

但我需要这样的东西:

[1, 2018-02-22 12:15:33.426734]
...

Answer 1

Model.pluck(:id, 'models.created_at AS created_at_before_type_cast') 

似乎可行