v archivation7 deleted data

common/proto/tables_data.proto

@@ -299,6 +299,37 @@ message GetTableDataVersionRequest {
   int64 version = 4;
 }
 
+// A link resolved exactly as the source row stored it, together with the
+// target row's current state. The physical companion version column remains
+// an internal implementation detail.
+enum ResolvedTableLinkStatus {
+  CURRENT = 0;
+  SUPERSEDED = 1;
+  UNAVAILABLE = 2;
+  DELETED = 3;
+}
+
+message ResolvedTableLinkVersion {
+  int64 version = 1;
+  map<string, string> data = 2;
+  repeated string row_display_values = 3;
+  repeated string row_display_columns = 4;
+}
+
+message ResolvedTableLinkUpdate {
+  int64 version = 1;
+  map<string, string> data = 2;
+  repeated string row_display_values = 3;
+  repeated string changed_fields = 4;
+}
+
+message ResolvedTableLink {
+  int64 id = 1;
+  ResolvedTableLinkVersion saved = 2;
+  ResolvedTableLinkStatus status = 3;
+  ResolvedTableLinkUpdate newer = 4;
+}
+
 // Row payload: all columns returned as strings.
 message GetTableDataResponse {
   // Map of column_name → stringified value for:
@@ -317,8 +348,12 @@ message GetTableDataResponse {
   repeated string row_display_values = 2;
   repeated string row_display_columns = 3;
 
-  // Version paired with each global-link column in this row.
-  map<string, int64> link_versions = 4;
+  // Links keyed by their public column name. Each value contains the row as
+  // saved by this record and the newest available state of the linked row.
+  map<string, ResolvedTableLink> resolved_links = 4;
+
+  // The generation returned by this response. Zero is never returned.
+  int64 row_version = 5;
 }
 
 // Count non-deleted rows.