DocumentDB：複数の列でリストを更新する際の問題

Question

複数の列が類似している場合（posted_byとlocation）、is_approved = falseを反転させたいドキュメントがあります。上記のコードで

私は複数の重複する列を取得することができますクエリを記述することはできませんよ

..

function Prop() { 
    var collection = getContext().getCollection(); 
    var collectionLink = collection.getSelfLink(); 
    var response = getContext().getResponse(); 
    var counter = 0; 
    var responseBody = { 
     updated: 0, 
     continuation: true, 
     error: "", 
     log: "" 
    }; 

    // Validate input. 
    getFullListOfPosts(); 

    // Recursively queries for a document by id w/ support for continuation tokens. 
    // Calls findDuplicates(document) as soon as the query returns a document. 
    function getFullListOfPosts(continuation) { 
     var query = { 
      query: "select * from root r ORDER BY r.created.epoch DESC" 
     }; 

     var requestOptions = { 
      continuation: continuation 
     }; 

     var isAccepted = collection.queryDocuments(collectionLink, query, requestOptions, proccessFullListOfPosts); 

     // If we hit execution bounds - throw an exception. 
     if (!isAccepted) { 
      responseBody.log += "Query not accepted"; 
      response.setBody(responseBody); 
     } 
    } 

    function proccessFullListOfPosts(err, documents, responseOptions) { 
     if (err) { 
      responseBody.error = err; 
      throw err; 
     } 

     if (documents.length > 0) { 
      // If documents are found, update them. 
      responseBody.log += "Found documents: " + documents.length; 
      findDuplicates(documents); 
     } 
    } 
    // Updates the supplied document according to the update object passed in to the sproc. 
    function findDuplicates(documents) { 
     if (documents.length > 0) { 
      responseBody.log += "Updating documents " + documents.length; 
      //for (var i = 0; i < documents.length; i++) { 
       var first = documents[0]; 
       //The below query is not right. I want the above query to fetch all records with same posted_by and location and turn its is_approved to false 
       var query = 'select * from root r WHERE r.is_approved = true AND r.posted_by = "' + first.posted_by + '"'; 
       var requestOptions = { 
        etag: first._etag 
       }; 
       var isAccepted = collection.queryDocuments(collectionLink, query, requestOptions, identifyRecordsToDisable); 

       // Update the document.      // If we hit execution bounds - throw an exception. 
       if (!isAccepted) { 
        responseBody.log += "Update not accepted"; 
        response.setBody(responseBody); 
       } 
     } else { 
      getFullListOfPosts(); 
     } 
    } 

    function identifyRecordsToDisable(err, documents, responseOptions) { 
     if (err) { 
      responseBody.error = err; 
      throw err; 
     } 

     if (documents.length > 0) { 
      // If documents are found, update them. 

      responseBody.log += "Found documents: " + documents.length; 
      for (var i = 0; i < documents.length; i++) { 
       var j = documents[i]; 
       j.is_approved = false; 
       responseBody.log += "^Updated" + j.id + j.is_approved + "" 
       var requestOptions = { 
        etag: j._etag 
       }; 
       var isAccepted = collection.replaceDocument(j._self, j, requestOptions, onReplaced); 

       responseBody.log += "*" + j.id + j.is_approved + "*" 
      } 
      findDuplicates(documents); 
     } 
    } 

    function onReplaced(err, updatedDocument, responseOptions) { 
     if (err) { 
      responseBody.error = err; 
      //throw err; 
     } 
     counter++; 
     response.setBody("Updated " + counter + " documents"); 
    } 
} 

、関数「findDuplicates」で、私が通じI正しいクエリを記述することができませんすべての重複レコードを取得できます。
私はdistinct、group byを使ってみました。持っている。私は文書化してもそれらをサポートしていないと思う

Answer 1

次のクエリは、両方のプロパティ値に一致するドキュメントを見つけるのに役立ちます。

SELECT * 
    FROM root r 
    WHERE r.is_approved = true 
    AND r.posted_by = "' + first.posted_by + '" 
    AND r.location = "' + first.location + '"