Hiperspace.Heap 2.5.43

• net10.0

  • Hiperspace (>= 2.5.43)
  • Microsoft.Bcl.HashCode (>= 6.0.0)
  • protobuf-net.Core (>= 3.2.56)
  • System.Numerics.Tensors (>= 10.0.5)

• net8.0

  • Hiperspace (>= 2.5.43)
  • Microsoft.Bcl.HashCode (>= 6.0.0)
  • protobuf-net.Core (>= 3.2.56)
  • System.Numerics.Tensors (>= 10.0.5)

• net9.0

  • Hiperspace (>= 2.5.43)
  • Microsoft.Bcl.HashCode (>= 6.0.0)
  • protobuf-net.Core (>= 3.2.56)
  • System.Numerics.Tensors (>= 10.0.5)

https://www.cepheis.com/hiperspace/20260401
# Overview
This release includes minor enhancement to the graph functionality when used with **Hiperspace.DB** graph view.  **Hiperspace.DB** provides a *graph* view that aggregates alll databases, so that graph shows all connections both local and foreign.   In the following example *Togaf.Has.WorkPackage*  includes a value *ProjectKey* that could be a stringified `SKey` reference to a project plan in another database.  When the *project* is viewed as a graph in  **Hiperspace.DB**, the graph includes paths between a *project plan* and *strategic goals*.

```
segment Togaf.Has.WorkPackage : Togaf.Base
   = Node        ( SKey = SKey, Name = Name, TypeName = "AF-WorkPackage"),
     Edge        (From = owner, To = this, Name = Name, TypeName = "AF-Has-WorkPackage"),
     Togaf.Edge_ (To = owner, From = this, Name = Name, TypeName = "AF-WorkPackage-For"),
     Togaf.Edges (From = this, To = Project, Name = Name, FromTypeName = "AF-WorkPackage-Plan", ToTypeName = "AF-Plan-WorkPackage"),
     Graph.HiperEdge = StrategicEdges #2675
{
   ProjectKey      : String #29
}
[
   "All Togaf.Edges that can be projected as Transitative Togaf.Edges to a Business Goal"
   @Once
   StrategicEdges  = StrategicEdge(this),
   Project         = externalnode(ProjectKey)
];
```
For efficiency, the `SKey` property has been changed from a [Base64](https://en.wikipedia.org/wiki/Base64) encoding of the *key* to add the option of a database prefix.  The `Node SKey` "Togaf.ascxyz==" will only search for matching items "abcxyz==" in the *Togaf* database.  Within the *Togaf* database, only the specific segment is searched because the *key* includes the `#Id` of the element set.

the following SQL query would return a table of all *project plans* and *Goals* that can be reached through the {component, service, function, process, capability, etc} that are in some way associated with the *Work Package*
```
SELECT project.Name AS "Project Name"
    , goal.Name AS "Goal Name"
    , project.SKey as "Project Id"
    , goal.SKey as "Goal Id"
FROM   Nodes as project
    , project.Tos as planedge
    , planedge.To as workpackage
    , workpackage.Tos as workedge
    , workedge.To as goal
WHERE  project.TypeName = 'Plan'
 AND  planedge.TypeName = 'AF-Plan-WorkPackage'
 AND  workpackage.TypeName = 'AF-WorkPackage'
 AND  workedge.TypeName = 'Strategic-Goal'
 AND  goal.TypeName = 'AF-Goal';
```
NB the five table join uses *implicit* joins in  `Hiperspace.SQL` because `project.Tos` and `workpackage.Tos` are `Set<Edge>` properties that are *implicitly* filtered by the source `Node`