versioning of FK for archiving

common/proto/table_definition.proto

@@ -83,6 +83,11 @@ message PostTableDefinitionRequest {
   // to individual MONEY-column currencies: tables may hold money in any currency, and amounts convert
   // to this one when they reach the ledger.
   string accounting_currency = 8;
+
+  // When true, the table is stored once in the global physical schema and is
+  // visible from every profile. profile_name and accounting_currency are ignored.
+  bool global = 9;
+
 }
 
 // Defines the input for explicitly creating tables backed by one invoice
@@ -237,6 +242,9 @@ message ProfileTreeResponse {
 
     // "dynamic" for user-defined tables, "system" for backend-managed tables.
     string table_kind = 5;
+
+    // True when this table is shared by every profile.
+    bool global = 6;
   }
 
   // Profile (schema) entry.
@@ -313,6 +321,7 @@ message TableDetail {
   repeated string row_display_columns = 6;
   map<string, ColumnBehavior> column_behaviors = 7;
   string table_kind = 8;
+  bool global = 9;
 }
 
 // Server-owned behavior for one logical column returned in table details.