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Mysql从数组中选择元素_Mysql_Sql_Ruby On Rails - Fatal编程技术网
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Mysql从数组中选择元素

mysql sql ruby-on-rails

Mysql从数组中选择元素,mysql,sql,ruby-on-rails,Mysql,Sql,Ruby On Rails,在我的表中，名为images的列存储为 [{:media_type=>"IMAGE", :name=>nil, :thumbnails=> {:small=>"small.png", :medium=>nil, }, {:media_type=>"IMAGE", :name=>nil, :thumbnails=> {:small=>&

在我的表中，名为
images
的列存储为

[{:media_type=>"IMAGE",
 :name=>nil,
 :thumbnails=>
   {:small=>"small.png",
    :medium=>nil,
   },
  {:media_type=>"IMAGE",
   :name=>nil,
   :thumbnails=>
     {:small=>"small1.png",
      :medium=>nil,
      }} .. and others elements]
所以我想选择它的方式喜欢它

images[0].thumbnails.small as pdf
images[1].thumbnails.small as jpg
我已经尝试过使用
JSON\u CONTAINS
来实现它，这与我想要的非常相似 但是没有运气

有什么办法吗