ADLAエラープレビュー外部表へのSQL Azureの

Question

私はSQL Azureのテーブルを持っていると私はそれ

私は資格やデータソースを作成し、私ができる指すAzureのデータ湖Analyticsで外部表を作成しようとしています私は他の外部テーブルを見ることができるので、彼らが動作することを確認します。しかし、この特定のテーブルをプレビューしようとすると、次のエラーが発生します。

Failed to connect to data source: 'MYDATASOURCE', with error(s): 'Incorrect syntax near the keyword 'SELECT'. 
Incorrect syntax near ')'.' 
CQO: Internal Error - Optimizer internal error. Assert: csExtRowsetInfoNew != nullptr in managed\scopecqo.cpp:2235 

この問題の原因は何ですか？これはテーブルスキーマに関連していますか？

SQL Azureテーブルスキーマ：

[rel].[TABLE1NAME](
[FSCServiceRequestId] [int] IDENTITY(1,1) NOT NULL, 
[ServiceRequestCRMId] [uniqueidentifier] NOT NULL, 
[TicketNumberTitle] [nvarchar](100) NOT NULL, 
[ProblemDescription] [nvarchar](max) NULL, 
[FSCServiceRequestStatusId] [int] NOT NULL, 
[FSCServiceRequestPriorityId] [int] NOT NULL, 
[PriorityOverrideReason] [nvarchar](1000) NULL, 
[RequestorPhoneNumber] [nvarchar](100) NULL, 
[FSCProblemRoomNumber] [varchar](200) NULL, 
[BuildingId] [int] NULL, 
[FSCProblemClassId] [int] NOT NULL, 
[FSCProblemTypeId] [int] NOT NULL, 
[ReclassificationReason] [nvarchar](100) NULL, 
[RequestCancellationReason] [nvarchar](2000) NULL, 
[IsCancelledForReclassification] [bit] NULL, 
[IsSurveyServiceRequest] [bit] NULL, 
[ProblemOccurredUTCDate] [datetime] NULL, 
[ProblemOccurredUTCYMD] [int] NULL, 
[ProblemOccurredInBuildingTimeZoneDate] [datetime] NULL, 
[CreationUTCDate] [datetime] NOT NULL, 
[CreationUTCYMD] [int] NOT NULL, 
[SubmittedUTCDate] [datetime] NULL, 
[SubmittedInBuildingTimeZoneDate] [datetime] NULL, 
[DueUTCDate] [datetime] NULL, 
[DueUTCYMD] [int] NULL, 
[DueInBuildingTimeZoneDate] [datetime] NULL, 
[RequestedFutureDueUTCDate] [datetime] NULL, 
[ProviderAdjustedDueInBuildingTimeZoneDate] [datetime] NULL, 
[ProviderAdjustedDueInBuildingTimeZoneYMD] [int] NULL, 
[Tier1WorkCompletionByBuildingTimeZoneDate] [datetime] NULL, 
[Tier1WorkCompletionByBuildingTimeZoneYMD] [int] NULL, 
[ModifiedUTCDate] [datetime] NULL, 
[ModifiedByPersonnelId] [int] NULL, 
[CompletionUTCDate] [datetime] NULL, 
[CompletionUTCYMD] [int] NULL, 
[CompletionInBuildingTimeZoneDate] [datetime] NULL, 
[IsActivityComplete] [bit] NOT NULL, 
[IsSLAMet] [bit] NULL, 
[OwningTeamName] [varchar](255) NULL, 
[CostCenterCode] [varchar](40) NULL, 
[CaseOriginType] [nvarchar](100) NOT NULL, 
[DeviceType] [nvarchar](100) NOT NULL, 
[FSCProviderAccountId] [int] NOT NULL, 
[CreatedFromSystemCode] [nvarchar](100) NULL, 
[RequestorPersonnelId] [int] NOT NULL, 
[RequestorEmailAlias] [varchar](30) NOT NULL, 
[RequestorFullName] [varchar](100) NULL, 
[RequestorIsSuperUser] [bit] NULL, 
[RequestorIsProviderUser] [bit] NOT NULL, 
[RequestorHeadCountTypeGroupDesc] [varchar](30) NOT NULL, 
[RequestorCSCompanyAgencyName] [varchar](30) NOT NULL, 
[RequestorProfitCenterCode] [char](10) NOT NULL, 
[RequestorCostCenterCode] [char](10) NOT NULL, 
[ContactPersonnelId] [int] NOT NULL, 
[ContactEmailAlias] [varchar](30) NOT NULL, 
[ContactFullName] [varchar](100) NOT NULL, 
[ContactIsSuperUser] [bit] NOT NULL, 
[ContactIsProviderUser] [bit] NOT NULL, 
[ContactHeadCountTypeGroupDesc] [varchar](30) NOT NULL, 
[ContactCSCompanyAgencyName] [varchar](30) NOT NULL, 
[ContactProfitCenterCode] [char](10) NOT NULL, 
[ContactCostCenterCode] [char](10) NOT NULL, 
[OwnerPersonnelId] [int] NOT NULL, 
[RoomTypeCode] [varchar](50) NULL, 
[CreatedDate] [datetime] NOT NULL, 
[CreatedBy] [varchar](30) NOT NULL, 
[UpdatedDate] [datetime] NULL, 
[UpdatedBy] [varchar](30) NULL, 
[OverriddenStatus] [varchar](50) NULL 
) 

USQL外部表のスキーマ：

CREATE EXTERNAL TABLE IF NOT EXISTS dbo.TABLE1_Local 
(
FSCServiceRequestId int, 
ServiceRequestCRMId Guid, 
TicketNumberTitle string, 
ProblemDescription string, 
FSCServiceRequestStatusId int, 
FSCServiceRequestPriorityId int, 
PriorityOverrideReason string, 
RequestorPhoneNumber string, 
FSCProblemRoomNumber string, 
BuildingId int?, 
FSCProblemClassId int, 
FSCProblemTypeId int, 
ReclassificationReason string, 
RequestCancellationReason string, 
IsCancelledForReclassification bool?, 
IsSurveyServiceRequest bool?, 
ProblemOccurredUTCDate DateTime?, 
ProblemOccurredUTCYMD int?, 
ProblemOccurredInBuildingTimeZoneDate DateTime?, 
CreationUTCDate DateTime, 
CreationUTCYMD int, 
SubmittedUTCDate DateTime?, 
SubmittedInBuildingTimeZoneDate DateTime?, 
DueUTCDate DateTime?, 
DueUTCYMD int?, 
DueInBuildingTimeZoneDate DateTime?, 
RequestedFutureDueUTCDate DateTime?, 
ProviderAdjustedDueInBuildingTimeZoneDate DateTime?, 
ProviderAdjustedDueInBuildingTimeZoneYMD int?, 
Tier1WorkCompletionByBuildingTimeZoneDate DateTime?, 
Tier1WorkCompletionByBuildingTimeZoneYMD int?, 
ModifiedUTCDate DateTime?, 
ModifiedByPersonnelId int?, 
CompletionUTCDate DateTime?, 
CompletionUTCYMD int?, 
CompletionInBuildingTimeZoneDate DateTime?, 
IsActivityComplete bool, 
IsSLAMet bool?, 
OwningTeamName string, 
CostCenterCode string, 
CaseOriginType string, 
DeviceType string, 
FSCProviderAccountId int, 
CreatedFromSystemCode string, 
RequestorPersonnelId int, 
RequestorEmailAlias string, 
RequestorFullName string, 
RequestorIsSuperUser bool?, 
RequestorIsProviderUser bool, 
RequestorHeadCountTypeGroupDesc string, 
RequestorCSCompanyAgencyName string, 
RequestorProfitCenterCode string, 
RequestorCostCenterCode string, 
ContactPersonnelId int, 
ContactEmailAlias string, 
ContactFullName string, 
ContactIsSuperUser bool, 
ContactIsProviderUser bool, 
ContactHeadCountTypeGroupDesc string, 
ContactCSCompanyAgencyName string, 
ContactProfitCenterCode string, 
ContactCostCenterCode string, 
OwnerPersonnelId int, 
RoomTypeCode string, 
CreatedDate DateTime, 
CreatedBy string, 
UpdatedDate DateTime?, 
UpdatedBy string, 
OverriddenStatus string 
) 
FROM MYDATASOURCE LOCATION "[rel].[TABLE1NAME]"; 

Answer 1

これは、修正プログラムが途中であるため、既知の問題のようです。 これが該当する場合、修正プログラムが公開されるまでの回避策は、クエリ文字列を角かっこで囲むことです。

SELECT * FROM EXTERNAL <data source name> 
EXECUTE @"(<original_query_string>)" 

Answer 2

外部テーブルからIDENTITYカラムを削除することで、動作させることができました。