TSQL-Befehl "Create Assembly" schlägt die Verifizierung auf SQL Server fehl?

Question

Ich experimentiere mit dem Hinzufügen von benutzerdefinierten Unterstützung für die R language in SQL Server 2014.

Ich möchte MEF installieren, um dies zu ermöglichen.

ich diese SQL laufen ...

CREATE ASSEMBLY [System.ComponentModel.Composition] 
AUTHORIZATION [dbo] 
from 'C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\System.ComponentModel.Composition.dll' 
WITH PERMISSION_SET = SAFE 

... aber ich bekomme diese Fehlermeldung:

Warning: The Microsoft .NET Framework assembly 'system.componentmodel.composition, version=4.0.0.0, culture=neutral, publickeytoken=b77a5c561934e089.' you are registering is not fully tested in the SQL Server hosted environment and is not supported. In the future, if you upgrade or service this assembly or the .NET Framework, your CLR integration routine may stop working. Please refer SQL Server Books Online for more details. 
Msg 6218, Level 16, State 2, Line 56 
CREATE ASSEMBLY for assembly 'System.ComponentModel.Composition' failed because assembly 'System.ComponentModel.Composition' failed verification. Check if the referenced assemblies are up-to-date and trusted (for external_access or unsafe) to execute in the database. CLR Verifier error messages if any will follow this message 
[ : Microsoft.Internal.Assumes::NotNull[T]][mdToken=0x6000001][offset 0x00000000] Code size is zero. 
[ : Microsoft.Internal.Assumes::NotNull[T1,T2]][mdToken=0x6000002][offset 0x00000000] Code size is zero. 
[ : Microsoft.Internal.Assumes::NotNull[T1,T2,T3]][mdToken=0x6000003][offset 0x00000000] Code size is zero. 
[ : Microsoft.Internal.Assumes::Null[T]][mdToken=0x6000005][offset 0x00000000] Code size is zero. 
[ : Microsoft.Internal.Assumes::NotReachable[T]][mdToken=0x600000a][offset 0x00000000] Code size is zero. 
[ : Microsoft.Internal.Assumes::NotNullOrEmpty][mdToken=0x6000004][offset 0x00000000] Code size is zero. 
[ : Microsoft.Internal.Assumes::IsFalse][mdToken=0x6000006][offset 0x00000000] Code size is zero. 
[ : Microsoft.Internal.Assumes::IsTrue][mdToken=0x6000007][offset 0x00000000] Code size is zero. 
[ : Microsoft.Internal.Assumes::IsTrue][mdToken=0x6000008][offset 0x00000000] Code size is zero. 
[ : Microsoft.Internal.Assumes::Fail][mdToken=0x6000009][offset 0x00000000] Code size is zero. 
[ : Microsoft.Internal.AttributeServices::GetAttributes[T]][mdToken=0x600000b][offset 0x00000000] Code size is zero. 
[ : Microsoft.Internal.AttributeServices::GetAttributes[T]][mdToken=0x600000c][offset 0x00000000] Code size is zero. 
[ : Microsoft.Internal.AttributeServices::GetFirstAttribute[T]][mdToken=0x600000d][offset 0x00000000] Code size is zero. 
[ : Microsoft.Internal.AttributeServices::GetFirstAttribute[T]][mdToken=0x600000e][offset 0x00000000] Code size is zero. 
[ : Microsoft.Internal.AttributeServices::IsAttributeDefined[T]][mdToken=0x600000f][offset 0x00000000] Code size is zero. 
[ : Microsoft.Internal.AttributeServices::IsAttributeDefined[T]][mdToken=0x6000010][offset 0... 

Answer 1

Es stellt sich heraus, dass ich using the "reference" .dll, not the actual "framework" .dll war. Das funktionierte gut:

CREATE ASSEMBLY [System.ComponentModel.Composition] 
AUTHORIZATION [dbo] 
from 'C:\Windows\Microsoft.NET\Framework64\v4.0.30319\System.ComponentModel.Composition.dll' 
WITH PERMISSION_SET = UNSAFE 

Um zu vermeiden, von zu erraten, welche Ordner zu importieren, diese Abfrage ausführen:

select * from sys.dm_clr_properties