we need to include the package name in this index, and also actually create the index

Author: tayloraswift

Sources/UnidocDB/Unidoc.DB.swift

@@ -600,7 +600,7 @@ extension Unidoc.DB
 
         try await self.redirects.insert(mesh.redirects)
         try await self.vertices.insert(mesh.vertices,
-            latest: mesh.metadata.latest)
+            trunk: mesh.metadata.latest ? mesh.metadata.symbol.package : nil)
         try await self.groups.insert(mesh.groups,
             realm: mesh.metadata.latest ? mesh.metadata.realm : nil)
 

Sources/UnidocDB/Vertices/Unidoc.DB.Vertices.VacuumLatest.swift

@@ -51,6 +51,7 @@ extension Unidoc.DB.Vertices.VacuumLatest:Mongo.UpdateQuery
             $0[.u]
             {
                 $0[.unset] { $0[Unidoc.AnyVertex[.linkable]] = true }
+                $0[.unset] { $0[Unidoc.AnyVertex[.trunk]] = true }
             }
         }
     }

Sources/UnidocDB/Vertices/Unidoc.DB.Vertices.swift

@@ -1,5 +1,6 @@
 import MongoDB
 import MongoQL
+import Symbols
 import Unidoc
 import UnidocRecords
 
@@ -62,9 +63,10 @@ extension Unidoc.DB.Vertices
     }
 
     public
-    static let indexLinkableStem:Mongo.CollectionIndex = .init("LinkableStem",
+    static let indexLinkablePath:Mongo.CollectionIndex = .init("LinkablePath",
         collation: .casefolding)
     {
+        $0[Unidoc.AnyVertex[.trunk]] = (+)
         $0[Unidoc.AnyVertex[.stem]] = (+)
     }
         where:
@@ -81,7 +83,15 @@ extension Unidoc.DB.Vertices:Mongo.CollectionModel
     var name:Mongo.Collection { "VolumeVertices" }
 
     @inlinable public static
-    var indexes:[Mongo.CollectionIndex] { [ Self.indexStem, Self.indexHash ] }
+    var indexes:[Mongo.CollectionIndex]
+    {
+        [
+            Self.indexStem,
+            Self.indexHash,
+            Self.indexLinkableFlag,
+            Self.indexLinkablePath,
+        ]
+    }
 }
 @available(*, unavailable, message: """
     Vertices contain flags set by the database, which would be lost if they were decoded and \
@@ -93,7 +103,8 @@ extension Unidoc.DB.Vertices:Mongo.RecodableModel
 extension Unidoc.DB.Vertices
 {
     @discardableResult
-    func insert(_ vertices:Unidoc.Mesh.Vertices, latest:Bool) async throws -> Mongo.Insertions
+    func insert(_ vertices:Unidoc.Mesh.Vertices,
+        trunk:Symbol.Package?) async throws -> Mongo.Insertions
     {
         let response:Mongo.InsertResponse = try await session.run(
             command: Mongo.Insert.init(Self.name,
@@ -109,7 +120,11 @@ extension Unidoc.DB.Vertices
                     {
                         Unidoc.AnyVertex.article(article).encode(to: &$0)
 
-                        $0[.linkable] = latest ? latest : nil
+                        if  let trunk:Symbol.Package
+                        {
+                            $0[.linkable] = true
+                            $0[.trunk] = trunk
+                        }
                     }
                 }
 

Sources/UnidocRecords/Volumes/Vertices/Unidoc.AnyVertex.swift

@@ -169,6 +169,10 @@ extension Unidoc.AnyVertex
         case extendee = "j"
         /// Appears in ``ArticleVertex``, ``DeclVertex``, ``CultureVertex``, and ``FileVertex``.
         case symbol = "Y"
+
+        /// Appears in ``ArticleVertex`` only, used for direct linking. This should only appear
+        /// if ``linkable`` is true.
+        case trunk = "V"
         /// Appears in every vertex type except for ``FileVertex``. In ``LandingVertex``, it is
         /// always the empty string.
         case stem = "U"