从 Cosmos DB 查询时延续令牌出现问题

Question

我在从 CosmosDB 查询项目时遇到了继续问题。

我已经尝试过但没有成功。我只能查询页面的前 10 个结果，即使我得到的标记不是 NULL.

令牌的大小为 10733 bytes，看起来像这样。

{"token":"+RID:gtQwAJ9KbavOAAAAAAAAAA==#RT:1#TRC:10#FPP:AggAAAAAAAAAAGoAAAAAKAAAAAAAAAAAAADCBc6AEoAGgAqADoASgAaACoAOgBKABoAKgA6AE4AHgAuAD4ASgAeACoAPgBOAB4ALgA+AE4AHgAqAD4ASgAeAC4APgBOAB4ALgA+AE4AIgA2AEYAFgAmADYARgAaACYAPgBKABYAKgA6AE4AHgAuAD4ATgAeAC4APgBOAB4ALgA+AE4AIgAuAD4ATgAeAC4APgBOACIAMgA+AFIAIgAyAD4AUgAmADIAQgAWACIALgBCABIAIgAyAEIAEgAiADIAQgAOACYANgBKAB4AJgA6AEYAGgAqADoATgAeAC4APgB....etc...etc","range":{"min":"","max":"05C1BF3FB3CFC0"}}

代码如下所示。函数 QueryDocuments 无效。相反，我不得不使用 QueryItems.

options = {} 
options['enableCrossPartitionQuery'] = True
options['maxItemCount'] = 10

 q = client.QueryItems(collection_link, query, options)
    results_1 = q._fetch_function(options)
    #this is a string representing a JSON object
    token = results_1[1]['x-ms-continuation']

    data = list(q._fetch_function({'maxItemCount':10,'enableCrossPartitionQuery':True, 'continuation':token}))

有解决办法吗？感谢您的帮助。

Answer 1

请使用pydocumentdb包并参考下面的示例代码。

from pydocumentdb import document_client

endpoint = "https://***.documents.azure.com:443/";
primaryKey = "***";

client = document_client.DocumentClient(endpoint, {'masterKey': primaryKey})

collection_link = "dbs/db/colls/coll"

query = "select c.id from c"

query_with_optional_parameters = [];

q = client.QueryDocuments(collection_link, query, {'maxItemCount': 2})
results_1 = q._fetch_function({'maxItemCount': 2})

print(results_1)
token = results_1[1]['x-ms-continuation']
results_2 = q._fetch_function({'maxItemCount': 2, 'continuation': token})

print(results_2)

输出：

从 Cosmos DB 查询时延续令牌出现问题

Problem with continuation token when querying from Cosmos DB

python

azure-cosmosdb

azure-cosmosdb-sqlapi