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I have document in witch has field "leader". Leader can be type string or array. For example {leader: "id"} or {leader: ["id"]}. How I can get all document where leader = id; If I use operator $all, I search in array, if use operator $or I search in field(string). How I can to connect them ? I don't want to do two request. Field has differents type because was had changed structure. Thanks.

"selector": {
      "leaderId": {
         "$all": ["id"]
      }
   }
Вова Журавлёв
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1 Answers1

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Try this 

db.collection.find({$or : [{"leader" : "id"}, {"leader" : { $all : ["id"] }}]})
Muhammad Usman
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