multirow FK

common/proto/table_definition.proto

@@ -48,19 +48,6 @@ service TableDefinition {
   rpc DeleteTable(DeleteTableRequest) returns (DeleteTableResponse);
 }
 
-// A single link to another table within the same profile (schema).
-message TableLink {
-  // Name of an existing table within the same profile to link to.
-  // For each link, a "<linked>_id" column is created on the new table.
-  // That column references "<linked>"(id) and adds an index automatically.
-  string linked_table_name = 1;
-
-  // If true, the generated foreign key column is NOT NULL.
-  // Otherwise the column allows NULL.
-  // Duplicate links to the same target table in one request are rejected.
-  bool required = 2;
-}
-
 // Defines the input for creating a new table definition.
 message PostTableDefinitionRequest {
   // Table name to create inside the target profile.
@@ -69,10 +56,6 @@ message PostTableDefinitionRequest {
   // Forbidden names: "id", "deleted", "created_at", "row_revision", or ending in "_id".
   string table_name = 1;
 
-  // List of links (foreign keys) to existing tables in the same profile.
-  // Each will automatically get a "<linked>_id" column and an index.
-  repeated TableLink links = 2;
-
   // List of user-defined columns (adds to system/id/fk columns).
   repeated ColumnDefinition columns = 3;
 
@@ -187,6 +170,9 @@ message ColumnDefinition {
   //   DURATION
   //   PERIOD
   //   DECIMAL(p,s) → NUMERIC(p,s)
+  //   LINK(table) → BIGINT referencing that table in the same profile, indexed
+  //                 automatically. A table may hold several links to the same
+  //                 target as long as the columns are named differently.
   // DECIMAL args must be integers (no sign, no dot, no leading zeros);
   // s ≤ p and p ≥ 1.
   string field_type = 2;
@@ -371,6 +357,12 @@ enum ColumnTypeSpelling {
   // at least 1 and scale no greater than precision; neither may carry a sign,
   // a decimal point, or leading zeros.
   COLUMN_TYPE_SPELLING_DECIMAL = 1;
+
+  // The name takes the name of another table in the same profile:
+  // "link(adresar)". The column holds that table's id, and the server creates
+  // the foreign key and its index. A picker offers the profile's other tables
+  // as the argument.
+  COLUMN_TYPE_SPELLING_LINK = 2;
 }
 
 // Response describing the whole column-type vocabulary.