I'm trying to page a query in Azure Cosmos DB by reading this post: > Paging through query results in Azure DocumentDB , I got to the code:

    public async Task <ICollection <TEntity>> GetAllPaged(int page, string colletionId) {
     FeedOptions queryOptions = new FeedOptions {
      MaxItemCount = 10
     };

     var query = client.CreateDocumentQuery <TEntity> (
       UriFactory.CreateDocumentCollectionUri(databaseId, colletionId), queryOptions)
      .AsDocumentQuery();

     FeedResponse <TEntity> result;
     List <TEntity> tEntitys = new List <TEntity> ();
     int interacoes = 0;
     while (query.HasMoreResults) {
      interacoes++;
      if (interacoes == page) {
       result = await query.ExecuteNextAsync <TEntity> ();
       tEntitys = result.ToList();
       break;
      }

     }
     return tEntitys;

    }

Explaining:

• MaxItemCount = 10 , total items per page.
• while (query.HasMoreResults) , execute a loop until results are available.
• if (interacoes == page) , when I get to my page I no longer need to check the next ones, where break .

Problem:

Imagine that I have about 50002 documents, and that my page asks the method for the result number 5001, that is, the last 2 records.

Each interaction of while this code: result = await query.ExecuteNextAsync<TEntity>() is responsible for each results page.

I thought of executing this code only on the specified page that I need through this code: if (interacoes == page) , the problem is that only the first result is read, ie I need to read page by page to achieve the desired result described in scenario above, and this has generated me 15 seconds of performance.

Note: Skip is not supported because it performs poorly. More in the GitHub Issues !

What can I do to improve this?