azure-cosmosdb

问题 By default, documentdb creates an index on every path in a JSON. If we insert a JSON with twenty key-value pairs, documentdb will create indexes on all of these values. Whereas in SQL server, having twenty indexes on a general table is not desirable (especially on transaction tables). So why documentdb does this? Is it because it works on most of the scenarios in documentdb? If So, why? 回答1: Because DocumentDB is designed for schema and query flexibility. DocumentDB is a NoSQL database that

问题 I am reading a data stream from Event Hub in Spark (using Databricks). My goal is to be able to write the streamed data to a CosmosDB. However I get the following error: org.apache.spark.sql.AnalysisException: 'write' can not be called on streaming Dataset/DataFrame. Is this scenario not supported? Spark versions: 2.2.0 and 2.3.0 Libraries used: json-20140107 rxnetty-0.4.20 azure-documentdb-1.14.0 azure-documentdb-rx-0.9.0-rc2 azure-cosmosdb-spark_2.2.0_2.11-1.0.0 rxjava-1.3.0 azure-eventhubs

问题 The goal is to input a simple string query like SELECT * FROM c WHERE c.deviceId = "device1" and all resulting fetched documents need to be deleted. I have found very old posts about doing this with a stored procedure, but I can't get it to work properly with the "new" UI. Thanks a lot in advance. EDIT : I feel like @jay-gong pointed to the correct direction but I encountered a problem with his solution: I can correctly create the stored procedure but when I try to execute it it asks for the

问题 I need to write an Azure Function that returns data against a Cosmos DB Database using Version 2 of Azure Functions. However, I am having hard time finding any good examples on how to do this. I can find very basic examples that involve search on an id. I want to be able to send the azure function some fields to query on. Such as "Likes" and "City" with in a partition and outside a partition as well. I want it to return all the all the records as json documents. Example of Cosmos DB Json

问题 I need the number of documents stored in a collection in my Azure Cosmos Db database. How can I get the count using LINQ query on the IQueryable object? docDbClient.CreateDocumentQuery<TResult>().Count() If I do above, I am unable to follow it up with .AsDocumentQuery() method. 回答1: This is my async implementation (use Count, for the sync version): var count = await DocumentClient. CreateDocumentQuery<T>(CreateCollectionUri(), CreateFeedOptions()). Where(predicate). CountAsync(); where

问题 I get the following exception while making a query to Azure Cosmos DB. I am unable to understand the exact problem with this exception. It used to work earlier and I am sure that no recent changes were made to azure cosmos DB. Can anyone suggest how to proceed forward in fixing this exception. DocumentClientException: The provided by the gateway. This is a first chance (internal) exception that all newer clients will know how to handle gracefully. This exception is traced, but unless you see

问题 I am trying to create a stored procedure to delete documents in Cosmos Db by using a query. Once the query returns the documents, I would like all the documents to be deleted. I tried using the script from this website but this requires putting one partition key. My Cosmos collection has a separate partition key per document so it will not work This is an example of a query I would like to run SELECT c.currentTime, c.pastTime FROM C WHERE c.currentTime < c.pastTime If that satisfies, I would

问题 With the usage of this query in CosmosDB Gremlin API: g.V().has('person', 'name', 'John').as('his') .out('bought').aggregate('self') .out('made_by') I have next output: [ { "id": "100", "label": "brand", "type": "vertex", "properties": { "name": [ { "id": "233b77e7-7007-4c08-8930-99b25b67e493", "value": "Apple" } ] } }, { "id": "100", "label": "brand", "type": "vertex", "properties": { "name": [ { "id": "233b77e7-7007-4c08-8930-99b25b67e493", "value": "Apple" } ] } }, { "id": "101", "label":

问题 With the usage of this query in CosmosDB Gremlin API: g.V().has('person', 'name', 'John').as('his') .out('bought').aggregate('self') .out('made_by') I have next output: [ { "id": "100", "label": "brand", "type": "vertex", "properties": { "name": [ { "id": "233b77e7-7007-4c08-8930-99b25b67e493", "value": "Apple" } ] } }, { "id": "100", "label": "brand", "type": "vertex", "properties": { "name": [ { "id": "233b77e7-7007-4c08-8930-99b25b67e493", "value": "Apple" } ] } }, { "id": "101", "label":

问题 I am working with Azure DocumentDB. I am looking at the ExecuteNextAsync operation. What I am seeing is the the ExecuteNextAsync returns no resluts. I am using examples I have found on line and don't generate any results. If I call an enumeration operation on the initial query results are returned. Is there an example showing the complete configuration for using ExecuteNextAsync? Update To be more explicit I am not actually getting any results. The call seems to just run and no error is