I think the covering index is non-clustered index which covers the query (so it doesn't require any additional lookups back to the table). What you describe is additional feature of such index which allows you including data which are not part of the index key on the leaf level.
CreateIndex
doesn't support that now. You must either use Sql
directly or you can check EF's source code and add support for INCLUDE
into CreateIndex
call, CreateIndexOperation
and related Generate
method in SQL Generator.