该字段未编入索引，无法查询 Raven.Database.Indexing 处未编入索引的字段
The field is not indexed, cannot query on fields that are not indexed at Raven.Database.Indexing
我对 RavenDB 和 HangFire 非常陌生，我正在创建一个后台任务，但是当我查询 ravendb 文档时出现索引错误，如下所示：
public static void UpdateDoNotDisturb()
{
IList<HotelRoom> rooms = new List<HotelRoom>();
Hotel project;
IQueryable<HotelRoom> queryableObj;
//Update Rooms with DND status and DndUntil greater than now.
using (var session = MvcApplication.DocumentStore.OpenSession())
{
queryableObj = session.Query<HotelRoom, HotelRoom_Search>().Where(x => x.Status == "DND" && x.DndUntilUtc < DateTime.Now).OfType<HotelRoom>();
//queryableObj = session.Query<HotelRoom, HotelRoom_Search>().Where(x => x.Status == "DND").OfType<HotelRoom>();
using (var enumerator = session.Advanced.Stream(queryableObj))
{
while (enumerator.MoveNext())
{
var room = enumerator.Current.Document;
rooms.Add(room);
}
}
}
}
关于文件：
{
"HotelId": "hotels/1474",
"RoomNumber": "407",
"Floor": "4th Floor",
"Status": "DND",
"RoomType": "Guest Room",
"RoomTemplate": "1474_Install_SBBs.json",
"Json": {
"main": {
"picRoomNumber": "Images/Photos/d5/d5de2652-08c3-49c7-a75a-446934962a1d.jpg",
"qrCode": "http://2d.my/36tn"
},
"taskSBB1": {
"deviceTvModelValue": "Other",
"tvLocation": "None",
"deviceTvModel": "Other",
"itemSbbRemoved": 0,
"deviceSbbQr": "http://2d.my/36tm",
"deviceTvMountType": "Articulating wall mount",
"deviceTvMountTypeValue": "Articulating wall mount",
"tvLocationValue": "",
"taskTechName": "Anton Anskin",
"taskName": "Install SBB",
"deviceTvSn": "703rmcj83595",
"taskStatus": "In Progress",
"deviceSbbPhotoMount": "Images/Photos/84/8410b77b-20f2-4146-b9cb-19e9dd3259ef.jpg",
"taskStarted": "2017-06-06T14:50:34.046000Z"
},
"tasks": [
"taskSBB1"
],
"survey": {
"sbbCount": "1",
"damageBoolean": 0
}
},
"LastUpdatedBy": "Mark",
"LastUpdatedUtc": "2017-07-10T18:46:27.9305296Z",
"StartedBy": null,
"StartedUtc": "2017-06-06T14:50:34.0460000Z",
"CompletedBy": null,
"CompletedUtc": "0001-01-01T00:00:00.0000000",
"CompletedDate": "0001-01-01T00:00:00.0000000",
"DndBy": "Mark",
"DndUntilUtc": "2017-07-10T21:46:00.0000000Z",
"RoomPhotos": [
{
"Key": "main",
"Name": "picRoomNumber",
"ImagePath": "Images/Photos/d5/d5de2652-08c3-49c7-a75a-446934962a1d.jpg",
"AddedBy": "Anton",
"AddedUtc": "2017-06-06T14:51:16.6010049Z"
},
{
"Key": "taskSBB1",
"Name": "deviceSbbPhotoMount",
"ImagePath": "Images/Photos/84/8410b77b-20f2-4146-b9cb-19e9dd3259ef.jpg",
"AddedBy": "Anton",
"AddedUtc": "2017-06-06T14:51:17.2572542Z"
}
],
"Issues": [],
"Scans": [],
"ChangeLog": [],
"CurrentPhase": null
}
我遇到了错误：
"Error": "System.ArgumentException: The field 'DndUntilUtc' is not indexed, cannot query on fields that are not indexed\r\n at Raven.Database.Indexing.Index.AssertQueryDoesNotContainFieldsThatAreNotIndexed(IndexQuery indexQuery, AbstractViewGenerator viewGenerator)\r\n at Raven.Database.Indexing.Index.IndexQueryOperation.<Query>d__57.MoveNext()\r\n at Raven.Database.Util.ActiveEnumerable`1..ctor(IEnumerable`1 enumerable)\r\n at Raven.Database.DocumentDatabase.<>c__DisplayClass96.<Query>b__8b(IStorageActionsAccessor actions)\r\n at Raven.Storage.Esent.TransactionalStorage.ExecuteBatch(Action`1 action, EsentTransactionContext transactionContext)\r\n at Raven.Storage.Esent.TransactionalStorage.Batch(Action`1 action)\r\n at Raven.Database.DocumentDatabase.Query(String index, IndexQuery query, CancellationToken externalCancellationToken, Action`1 headerInfo, Action`1 onResult)\r\n at Raven.Database.Server.Responders.QueryStreams.Respond(IHttpContext context)\r\n at Raven.Database.Server.HttpServer.DispatchRequest(IHttpContext ctx)\r\n at Raven.Database.Server.HttpServer.HandleActualRequest(IHttpContext ctx)"
}
Source=Raven.Client.Lightweight
StackTrace:
at Raven.Client.Connection.HttpJsonRequest.RawExecuteRequest()
at Raven.Client.Connection.ServerClient.StreamQuery(String index, IndexQuery query, QueryHeaderInformation& queryHeaderInfo)
at Raven.Client.Document.DocumentSession.Stream[T](IDocumentQuery`1 query, QueryHeaderInformation& queryHeaderInformation)
at Raven.Client.Document.DocumentSession.Stream[T](IQueryable`1 query, QueryHeaderInformation& queryHeaderInformation)
at Raven.Client.Document.DocumentSession.Stream[T](IQueryable`1 query)
我很好奇如何修复此错误以及原因。谢谢。
您正在使用 属性 'DndUntilUtc' 查询索引 'HotelRoom_Search'，但索引不包含它。
在lucene/ravendb世界中，如果你通过特定的属性查询索引[，虽然集合（或sql世界中的table）包含它]，它仅当索引包含它时才会起作用。
只需将字段 'DndUntilUtc' 添加到您的索引。
你没有包含你的索引定义所以我猜它是这样的：
public class HotelRoom_Search : AbstractIndexCreationTask<HotelRoom>
{
public HotelRoom_Search()
{
Map = rooms => from room in rooms
select new
{
//bla bla
room.DndUntilUtc // add this line
//bla bla
};
Indexes.Add(x => x.DndUntilUtc, FieldIndexing.Analyzed);
}
}
并且不要忘记 运行 这个，所以服务器会更新索引定义：
var store = new DocumentStore { //....}
new HotelRoom_Search().Execute(Store);
更新：
为了克服这个问题，您还可以在不指定索引的情况下查询对象 HotelRoom（仅将实体作为 T 传递给 session.Query）。这将使 ravendb 根据您在查询中使用的属性创建一个自动索引。
ravendb 文档：
Indexes are used by server to satisfy queries, whenever a user issues a query RavenDB will use an existing index if it matches query or create a new one if no match is found.
Indexes created by issuing a query are calleddynamic or Auto indexes and can be easily identified, due to their name that starts withAuto/ prefix.
Indexes created explicitly by user are calledstatic.
通常您希望控制 raven 索引（和检索）文档以调整性能的方式，因此这不是一个好的选择，但作为默认设置很好。
当然不能修复错误。
我对 RavenDB 和 HangFire 非常陌生，我正在创建一个后台任务，但是当我查询 ravendb 文档时出现索引错误，如下所示：
public static void UpdateDoNotDisturb()
{
IList<HotelRoom> rooms = new List<HotelRoom>();
Hotel project;
IQueryable<HotelRoom> queryableObj;
//Update Rooms with DND status and DndUntil greater than now.
using (var session = MvcApplication.DocumentStore.OpenSession())
{
queryableObj = session.Query<HotelRoom, HotelRoom_Search>().Where(x => x.Status == "DND" && x.DndUntilUtc < DateTime.Now).OfType<HotelRoom>();
//queryableObj = session.Query<HotelRoom, HotelRoom_Search>().Where(x => x.Status == "DND").OfType<HotelRoom>();
using (var enumerator = session.Advanced.Stream(queryableObj))
{
while (enumerator.MoveNext())
{
var room = enumerator.Current.Document;
rooms.Add(room);
}
}
}
}
关于文件：
{
"HotelId": "hotels/1474",
"RoomNumber": "407",
"Floor": "4th Floor",
"Status": "DND",
"RoomType": "Guest Room",
"RoomTemplate": "1474_Install_SBBs.json",
"Json": {
"main": {
"picRoomNumber": "Images/Photos/d5/d5de2652-08c3-49c7-a75a-446934962a1d.jpg",
"qrCode": "http://2d.my/36tn"
},
"taskSBB1": {
"deviceTvModelValue": "Other",
"tvLocation": "None",
"deviceTvModel": "Other",
"itemSbbRemoved": 0,
"deviceSbbQr": "http://2d.my/36tm",
"deviceTvMountType": "Articulating wall mount",
"deviceTvMountTypeValue": "Articulating wall mount",
"tvLocationValue": "",
"taskTechName": "Anton Anskin",
"taskName": "Install SBB",
"deviceTvSn": "703rmcj83595",
"taskStatus": "In Progress",
"deviceSbbPhotoMount": "Images/Photos/84/8410b77b-20f2-4146-b9cb-19e9dd3259ef.jpg",
"taskStarted": "2017-06-06T14:50:34.046000Z"
},
"tasks": [
"taskSBB1"
],
"survey": {
"sbbCount": "1",
"damageBoolean": 0
}
},
"LastUpdatedBy": "Mark",
"LastUpdatedUtc": "2017-07-10T18:46:27.9305296Z",
"StartedBy": null,
"StartedUtc": "2017-06-06T14:50:34.0460000Z",
"CompletedBy": null,
"CompletedUtc": "0001-01-01T00:00:00.0000000",
"CompletedDate": "0001-01-01T00:00:00.0000000",
"DndBy": "Mark",
"DndUntilUtc": "2017-07-10T21:46:00.0000000Z",
"RoomPhotos": [
{
"Key": "main",
"Name": "picRoomNumber",
"ImagePath": "Images/Photos/d5/d5de2652-08c3-49c7-a75a-446934962a1d.jpg",
"AddedBy": "Anton",
"AddedUtc": "2017-06-06T14:51:16.6010049Z"
},
{
"Key": "taskSBB1",
"Name": "deviceSbbPhotoMount",
"ImagePath": "Images/Photos/84/8410b77b-20f2-4146-b9cb-19e9dd3259ef.jpg",
"AddedBy": "Anton",
"AddedUtc": "2017-06-06T14:51:17.2572542Z"
}
],
"Issues": [],
"Scans": [],
"ChangeLog": [],
"CurrentPhase": null
}
我遇到了错误：
"Error": "System.ArgumentException: The field 'DndUntilUtc' is not indexed, cannot query on fields that are not indexed\r\n at Raven.Database.Indexing.Index.AssertQueryDoesNotContainFieldsThatAreNotIndexed(IndexQuery indexQuery, AbstractViewGenerator viewGenerator)\r\n at Raven.Database.Indexing.Index.IndexQueryOperation.<Query>d__57.MoveNext()\r\n at Raven.Database.Util.ActiveEnumerable`1..ctor(IEnumerable`1 enumerable)\r\n at Raven.Database.DocumentDatabase.<>c__DisplayClass96.<Query>b__8b(IStorageActionsAccessor actions)\r\n at Raven.Storage.Esent.TransactionalStorage.ExecuteBatch(Action`1 action, EsentTransactionContext transactionContext)\r\n at Raven.Storage.Esent.TransactionalStorage.Batch(Action`1 action)\r\n at Raven.Database.DocumentDatabase.Query(String index, IndexQuery query, CancellationToken externalCancellationToken, Action`1 headerInfo, Action`1 onResult)\r\n at Raven.Database.Server.Responders.QueryStreams.Respond(IHttpContext context)\r\n at Raven.Database.Server.HttpServer.DispatchRequest(IHttpContext ctx)\r\n at Raven.Database.Server.HttpServer.HandleActualRequest(IHttpContext ctx)"
}
Source=Raven.Client.Lightweight
StackTrace:
at Raven.Client.Connection.HttpJsonRequest.RawExecuteRequest()
at Raven.Client.Connection.ServerClient.StreamQuery(String index, IndexQuery query, QueryHeaderInformation& queryHeaderInfo)
at Raven.Client.Document.DocumentSession.Stream[T](IDocumentQuery`1 query, QueryHeaderInformation& queryHeaderInformation)
at Raven.Client.Document.DocumentSession.Stream[T](IQueryable`1 query, QueryHeaderInformation& queryHeaderInformation)
at Raven.Client.Document.DocumentSession.Stream[T](IQueryable`1 query)
我很好奇如何修复此错误以及原因。谢谢。
您正在使用 属性 'DndUntilUtc' 查询索引 'HotelRoom_Search'，但索引不包含它。
在lucene/ravendb世界中，如果你通过特定的属性查询索引[，虽然集合（或sql世界中的table）包含它]，它仅当索引包含它时才会起作用。 只需将字段 'DndUntilUtc' 添加到您的索引。
你没有包含你的索引定义所以我猜它是这样的：
public class HotelRoom_Search : AbstractIndexCreationTask<HotelRoom>
{
public HotelRoom_Search()
{
Map = rooms => from room in rooms
select new
{
//bla bla
room.DndUntilUtc // add this line
//bla bla
};
Indexes.Add(x => x.DndUntilUtc, FieldIndexing.Analyzed);
}
}
并且不要忘记 运行 这个，所以服务器会更新索引定义：
var store = new DocumentStore { //....}
new HotelRoom_Search().Execute(Store);
更新：
为了克服这个问题，您还可以在不指定索引的情况下查询对象 HotelRoom（仅将实体作为 T 传递给 session.Query）。这将使 ravendb 根据您在查询中使用的属性创建一个自动索引。
ravendb 文档：
Indexes are used by server to satisfy queries, whenever a user issues a query RavenDB will use an existing index if it matches query or create a new one if no match is found. Indexes created by issuing a query are calleddynamic or Auto indexes and can be easily identified, due to their name that starts withAuto/ prefix. Indexes created explicitly by user are calledstatic.
通常您希望控制 raven 索引（和检索）文档以调整性能的方式，因此这不是一个好的选择，但作为默认设置很好。
当然不能修复错误。