Cosmos DB
Querying documents in CosmosDB Use FeedResponse to retrieve all hits The documents in a collection might be stored in different partitions. When querying documents in a collection, the response will only contain documents from a single partition at a time, to retrieve your hits across all partitions you may utilize the the continuation token or the HasMoreResults property of the DocumentQuery. Avoid expensive queries CosmosDB uses indexes to find matches for the queries, if there is not value for the indexed property, all instances will have to be checked to figure out if there is a match for the query. »