Merge pull request #186 from lsst/tickets/DM-41652-part2

DM-41652: Part 2 of adding single-attribute foreign keys to DP0.2

doc/dp02_dc2.mmd

@@ -0,0 +1,64 @@
+---
+title: DP0.2 Table Relationships
+---
+erDiagram
+    Object {
+        long objectId UK
+        long tract FK
+        long patch FK
+    }
+    Object ||--o{ MatchesTruth : matches
+    Object }o..|| CoaddPatches : "found in"
+    Object ||--|{ ForcedSource : seeds
+
+    Source {
+        long ccdVisitId FK
+        long visit FK
+    }
+    Source }o..|| CcdVisit : "found in"
+    Source }o..|| Visit : "found in"
+    ForcedSource {
+        long objectId FK
+        long ccdVisitId FK
+        long tract FK
+        long patch FK
+    }
+    ForcedSource }o..|| CcdVisit : "measured in"
+    DiaObject {
+        long diaObjectId UK
+        long nDiaSources
+    }
+    DiaObject |o..|{ DiaSource : "built from"
+    DiaObject ||--|{ ForcedSourceOnDiaObject : "seeds"
+    DiaSource {
+        long diaObjectId FK
+        long ccdVisitId FK
+    }
+    DiaSource }o..|| CcdVisit : "found in"
+    ForcedSourceOnDiaObject {
+        long diaObjectId FK
+        long ccdVisitId FK
+        long tract FK
+        long patch FK
+    }
+    ForcedSourceOnDiaObject }o..|| CcdVisit : "measured in"
+    CcdVisit {
+        long ccdVisitId UK
+        long visitId FK
+    }
+     Visit {
+        long visit UK
+    }
+    Visit ||--|{ CcdVisit : contains
+    CoaddPatches {
+        long lsst_tract PK
+        long lsst_patch PK
+    }
+    MatchesTruth {
+        string id_truth_type FK
+        long match_objectId FK
+    }
+    TruthSummary {
+        string id_truth_type PK
+    }
+    TruthSummary ||--o{ MatchesTruth : matches

yml/README.md

@@ -1,9 +1,11 @@
 Rubin Data Model Definitions
 ============================
 
-The files in this directory contain definitions, in the "Felis" format,
+The files in this directory contain definitions,
+[in the "Felis" format](https://felis.lsst.io/),
 of the data models for the Rubin Observatory's public and principal internal
-catalog and observation metadata tabular data products.
+catalog and observation metadata tabular data products,
+including IVOA-related metadata.
 
 See [the main README for this repository](../README.md) for more information.