Question

当我尝试将MapReduce结果中的日期属性与我的应用程序中的日期属性进行比较时，我得到了一个奇怪的行为。

var queryDate = DateTime.Now.Date;
IQueryable<VisitsByMediaSourceAndVersion.MapReduceResult> queryable =
    _documentSession
    .Query<MyIndex.MapReduceResult>(MyIndex.INDEX_NAME)
    .Where(mapReduceResult => mapReduceResult.Date == queryDate);
var count = queryable.Count(),

当调用queryable.Count（）时，抛出异常。看看例外的网址似乎＆＃34;日期：2012-08-22T00：00：00.0000000＆＃34;生成为查询参数，然后RavenDB-client解释＆＃34; 22T00：＆＃34;作为索引中的新字段名称。

System.InvalidOperationException未被用户代码处理 Message = Url：＆＃34; / indexes / VisitsByMediaSourceAndVersion？query = Date％253A2012-08-＆gt; 22T00％253A00％253A00.0000000＆amp; start = 0＆amp; pageSize = 0＆amp; aggregation = None＆＃34;

这是为什么？有工作吗？我是唯一有这个问题的人吗？

我无法在RavenDB的EmbeddableDocumentStore版本中重新创建此问题，这有意义吗？如果我删除了日期查询，它会返回结果，因此索引本身就可以工作。

使用RavenDB客户端1.2.0.0和服务器960。

感谢所有人的帮助！

完整堆栈跟踪：

System.InvalidOperationException未被用户代码处理 Message = Url：＆＃34; / indexes / VisitsByMediaSourceAndVersion？query = Date％253A2012-08-22T00％253A00％253A00.0000000＆amp; start = 0＆amp; pageSize = 0＆amp; aggregation = None＆＃34;

System.ArgumentException：字段＆＃39; 22T00＆＃39;未编入索引，无法查询未编制索引的字段 at Raven.Database.Indexing.Index.IndexQueryOperation.AssertQueryDoesNotContainFieldsThatAreNotIndexes（）in c：\ Builds \ RavenDB-Stable \ Raven.Database \ Indexing \ Index.cs：line 819 at Raven.Database.Indexing.Index.IndexQueryOperation.d_ 2e.MoveNext（）in c：\ Builds \ RavenDB-Stable \ Raven.Database \ Indexing \ Index.cs：line 635 在System.Linq.Enumerable.WhereSelectEnumerableIterator 2.MoveNext() at System.Linq.Enumerable.WhereSelectEnumerableIterator 2.MoveNext（）在System.Collections.Generic.List 1.InsertRange(Int32 index, IEnumerable 1个集合）在Raven.Database.DocumentDatabase。＆lt;＆gt; c _DisplayClass82.b__78（IStorageActionsAccessor actions）中的c：\ Builds \ RavenDB-Stable \ Raven.Database \ DocumentDatabase.cs：第838行 at Raven.Storage.Esent.TransactionalStorage.ExecuteBatch（Action 1 action) in c:\Builds\RavenDB-Stable\Raven.Storage.Esent\TransactionalStorage.cs:line 376 at Raven.Storage.Esent.TransactionalStorage.Batch(Action 1 action）in c：\ Builds \ RavenDB-Stable \ Raven.Storage.Esent \ TransactionalStorage.cs：337行在Raven.Database.DocumentDatabase.Query（String index，IndexQuery query）中的c：\ Builds \ RavenDB-Stable \ Raven.Database \ DocumentDatabase.cs：第781行在Raven.Database.Server.Responders.Index.PerformQueryAgainstExistingIndex（IHttpContext context，String index，IndexQuery indexQuery，Guid＆amp; indexEtag）中的c：\ Builds \ RavenDB-Stable \ Raven.Database \ Server \ Responders \ Index.cs：第214行位于c：\ Builds \ RavenDB-Stable \ Raven.Database \ Server \ Responders \ Index.cs中的Raven.Database.Server.Responders.Index.ExecuteQuery（IHttpContext context，String index，Guid＆amp; indexEtag）：第179行位于c：\ Builds \ RavenDB-Stable \ Raven.Database \ Server \ Responders \ Index.cs中的Raven.Database.Server.Responders.Index.GetIndexQueryRessult（IHttpContext context，String index）：第119行位于c：\ Builds \ RavenDB-Stable \ Raven.Database \ Server \ Responders \ Index.cs中的Raven.Database.Server.Responders.Index.OnGet（IHttpContext context，String index）：第91行位于c：\ Builds \ RavenDB-Stable \ Raven.Database \ Server \ Responders \ Index.cs中的Raven.Database.Server.Responders.Index.Respond（IHttpContext context）：第46行位于c：\ Builds \ RavenDB-Stable \ Raven.Database \ Server \ HttpServer.cs中的Raven.Database.Server.HttpServer.DispatchRequest（IHttpContext ctx）：第550行位于c：\ Builds \ RavenDB-Stable \ Raven.Database \ Server \ HttpServer.cs中的Raven.Database.Server.HttpServer.HandleActualRequest（IHttpContext ctx）：第316行

源= Raven.Client.Lightweight 堆栈跟踪：位于c：\ Builds \ RavenDB-Unstable-v1.2 \ Raven.Client.Lightweight \ Connection \ HttpJsonRequest.cs中的Raven.Client.Connection.HttpJsonRequest.HandleErrors（WebException e）：第422行 at Raven.Client.Connection.HttpJsonRequest.ReadJsonInternal（Func 1 getResponse) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Client.Lightweight\Connection\HttpJsonRequest.cs:line 292 at Raven.Client.Connection.HttpJsonRequest.ReadResponseJson() in c:\Builds\RavenDB-Unstable-v1.2\Raven.Client.Lightweight\Connection\HttpJsonRequest.cs:line 202 at Raven.Client.Connection.ServerClient.DirectQuery(String index, IndexQuery query, String operationUrl, String[] includes) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Client.Lightweight\Connection\ServerClient.cs:line 745 at Raven.Client.Connection.ServerClient.<>c__DisplayClass43.<Query>b__42(String u) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Client.Lightweight\Connection\ServerClient.cs:line 727 at Raven.Client.Connection.ReplicationInformer.TryOperation[T](Func 2操作，String operationUrl，Boolean avoidThrowing，T＆amp; result）在c：\ Builds \ RavenDB-Unstable-v1.2 \ Raven.Client.Lightweight \ Connection \ ReplicationInformer.cs：第548行 at Raven.Client.Connection.ReplicationInformer.ExecuteWithReplication [T]（String方法，String primaryUrl，Int32 currentRequest，Int32 currentReadStripingBase，Func 2 operation) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Client.Lightweight\Connection\ReplicationInformer.cs:line 520 at Raven.Client.Connection.ServerClient.ExecuteWithReplication[T](String method, Func 2操作）在c：\ Builds \ RavenDB-Unstable-v1.2 \ Raven中.Client.Lightweight \ Connection \ ServerClient.cs：第165行在Raven.Client.Connection.ServerClient.Query（String index，IndexQuery query，String [] includes）中的c：\ Builds \ RavenDB-Unstable-v1.2 \ Raven.Client.Lightweight \ Connection \ ServerClient.cs：第727行在Raven.Client.Document.AbstractDocumentQuery 2.ExecuteActualQuery() in c:\Builds\RavenDB-Unstable-v1.2\Raven.Client.Lightweight\Document\AbstractDocumentQuery.cs:line 462 at Raven.Client.Document.AbstractDocumentQuery 2.InitSync（）在c：\ Builds \ RavenDB-Unstable-v1.2 \ Raven.Client.Lightweight \ Document \ AbstractDocumentQuery.cs：第444行在Raven.Client.Document.AbstractDocumentQuery 2.get_QueryResult() in c:\Builds\RavenDB-Unstable-v1.2\Raven.Client.Lightweight\Document\AbstractDocumentQuery.cs:line 430 at Raven.Client.Linq.RavenQueryProviderProcessor 1.GetQueryResult [TProjection]（IDocumentQuery 1 finalQuery) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Client.Lightweight\Linq\RavenQueryProviderProcessor.cs:line 1456 at Raven.Client.Linq.RavenQueryProviderProcessor 1.ExecuteQueryTProjection在c：\ Builds \ RavenDB-Unstable-v1.2 \ Raven.Client.Lightweight \ Linq \ RavenQueryProviderProcessor.cs：第1376行在Raven.Client.Linq.RavenQueryProviderProcessor 1.Execute(Expression expression) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Client.Lightweight\Linq\RavenQueryProviderProcessor.cs:line 1359 at Raven.Client.Linq.RavenQueryProvider 1.执行（表达式表达式）在c：\ Builds \ RavenDB-Unstable-v1.2 \ Raven.Client.Lightweight \ Linq \ RavenQueryProvider.cs：第138行在Raven.Client.Linq.RavenQueryProvider 1.System.Linq.IQueryProvider.Execute[S](Expression expression) in c:\Builds\RavenDB-Unstable-v1.2\Raven.Client.Lightweight\Linq\RavenQueryProvider.cs:line 183 at System.Linq.Queryable.Count[TSource](IQueryable 1来源） at TotallyMoney.CreditCards.Admin.Web.Controllers.DailyReportController.Report（ReportPostModel reportPostModel）在C：\ Development \ Git \ MediaIngenuity \ TotallyMoney.CreditCards \ TotallyMoney.CreditCards.Admin.Web \ Controllers \ DailyReportController.cs：第33行在lambda_method（Closure，ControllerBase，Object []）在System.Web.Mvc.ActionMethodDispatcher.Execute（ControllerBase控制器，Object []参数）在System.Web.Mvc.ReflectedActionDescriptor.Execute（ControllerContext controllerContext，IDictionary 2 parameters) at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary 2个参数）在System.Web.Mvc.ControllerActionInvoker。＆lt;＆gt; c_ DisplayClass15.b _12（）在System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter（IActionFilter过滤器，ActionExecutingContext preContext，Func`1 continuation） InnerException：

Answer 1

发生此异常是因为您对1.0服务器使用1.2（现在为2.0）客户端。这不受支持。

您可以将较旧的客户端与较新的服务器一起使用，但不能相反。

Answer 2

如果它生成了正确的日期并且之后不需要其余的数据，您是否可以使用子字符串仅拉取日期，或者可能在方法queryable.Count（）周围使用GetDate（）？

RavenDB中日期查询的问题

2 个答案: