דרוש קוד בlinq to entities

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אני מעתיק כאן את הדרישה שכבר כתבתי באנגלית

Hi
Basically i'm looking for a non-generics version of the code here

https://stackoverflow.com/a/43669055/240742

In other words, I can't call FullOuterJoin<T>, since i dont have an IQueryable<T>. I only have an IQueryable

So what I need is:
.net code (preferrably vb.net, but C# is okay as well) which can do a full join between to IQueryable's, without going to the db until final execution (no tolists etc till after the join is built)
code should be lean and clean, no extra logging, exception handling, external libraries etc

Stored Procedures/temp tables are irrelevant, this must work via entity framework IQueryable

The way I will use your code is like this

dim qry1=MyIQueryableA
dim qry2=MyIQueryableB

dim new qry=BrandNewFullJoinFunction(qry1,qry2)'it might be necessary to add additional parameters here, such as join fields etc, thats ok

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