auto recomputation fields are now available

common/proto/table_structure.proto

@@ -71,4 +71,8 @@ message TableColumn {
   // True if the column is part of the table's PRIMARY KEY.
   // Typically true for the "id" column created by the system.
   bool is_primary_key = 4;
+
+  // True for a user-defined column whose logic should be recomputed whenever
+  // one of its dependencies changes. False for system and foreign-key columns.
+  bool recompute_on_dependency_change = 5;
 }