aliasing can now move things around

common/proto/table_definition.proto

@@ -375,6 +375,8 @@ message TableDetail {
   map<string, ColumnBehavior> column_behaviors = 7;
   string table_kind = 8;
   bool global = 9;
+  // Revision of this table definition for optimistic concurrency control.
+  int64 row_version = 10;
 }
 
 // Server-owned behavior for one logical column returned in table details.
@@ -417,12 +419,16 @@ message SetColumnPresentationRequest {
   string profile_name = 1;
   string table_name = 2;
   repeated ColumnPresentation columns = 3;
+  // Row version returned by GetProfileDetails when this presentation was read.
+  int64 expected_row_version = 4;
 }
 
 message SetColumnPresentationResponse {
   bool success = 1;
   string message = 2;
   repeated ColumnPresentation columns = 3;
+  // New row version after the update.
+  int64 row_version = 4;
 }
 
 // Request to delete one table definition entirely.

common/src/proto/komp_ac.table_definition.rs

@@ -385,6 +385,9 @@ pub struct TableDetail {
     pub table_kind: ::prost::alloc::string::String,
     #[prost(bool, tag = "9")]
     pub global: bool,
+    /// Revision of this table definition for optimistic concurrency control.
+    #[prost(int64, tag = "10")]
+    pub row_version: i64,
 }
 /// Server-owned behavior for one logical column returned in table details.
 #[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
@@ -440,6 +443,9 @@ pub struct SetColumnPresentationRequest {
     pub table_name: ::prost::alloc::string::String,
     #[prost(message, repeated, tag = "3")]
     pub columns: ::prost::alloc::vec::Vec<ColumnPresentation>,
+    /// Row version returned by GetProfileDetails when this presentation was read.
+    #[prost(int64, tag = "4")]
+    pub expected_row_version: i64,
 }
 #[derive(serde::Serialize, serde::Deserialize)]
 #[derive(Clone, PartialEq, ::prost::Message)]
@@ -450,6 +456,9 @@ pub struct SetColumnPresentationResponse {
     pub message: ::prost::alloc::string::String,
     #[prost(message, repeated, tag = "3")]
     pub columns: ::prost::alloc::vec::Vec<ColumnPresentation>,
+    /// New row version after the update.
+    #[prost(int64, tag = "4")]
+    pub row_version: i64,
 }
 /// Request to delete one table definition entirely.
 #[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]