multiclient setup2

common/src/grpc_error.rs

@@ -1,5 +1,6 @@
 pub const ERROR_REASON_METADATA_KEY: &str = "komp-ac-error-reason";
-pub const EXPECTED_ROW_METADATA_KEY: &str = "komp-ac-expected-row-bin";
+pub const EXPECTED_ROW_REVISION_METADATA_KEY: &str = "komp-ac-expected-row-revision";
+pub const ROW_REVISION_METADATA_KEY: &str = "komp-ac-row-revision";
 pub const COMPUTED_VALUE_MISMATCH_REASON: &str = "computed-value-mismatch";
 pub const ROW_STALE_REASON: &str = "row-stale";
 pub const ROW_ID_CONFLICT_REASON: &str = "row-id-conflict";

common/src/proto/komp_ac.table_definition.rs

@@ -21,7 +21,7 @@ pub struct PostTableDefinitionRequest {
     /// Table name to create inside the target profile.
     /// Must be lowercase, alphanumeric with underscores,
     /// start with a letter, and be \<= 63 chars.
-    /// Forbidden names: "id", "deleted", "created_at", or ending in "\_id".
+    /// Forbidden names: "id", "deleted", "created_at", "row_revision", or ending in "\_id".
     #[prost(string, tag = "1")]
     pub table_name: ::prost::alloc::string::String,
     /// List of links (foreign keys) to existing tables in the same profile.
@@ -33,7 +33,7 @@ pub struct PostTableDefinitionRequest {
     pub columns: ::prost::alloc::vec::Vec<ColumnDefinition>,
     /// List of column names to be indexed (must match existing user-defined columns).
     /// Indexes can target only user-defined columns; system columns ("id", "deleted",
-    /// "created_at") and automatically generated foreign key ("\*\_id") columns already
+    /// "created_at", "row_revision") and automatically generated foreign key ("\*\_id") columns already
     /// have indexes. Requests trying to index those columns are rejected.
     #[prost(string, repeated, tag = "4")]
     pub indexes: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
@@ -76,7 +76,7 @@ pub struct AddTableColumnsRequest {
 pub struct ColumnDefinition {
     /// Column name that follows the same validation rules as table_name.
     /// Must be lowercase, start with a letter, no uppercase characters,
-    /// and cannot be "id", "deleted", "created_at", or end with "\_id".
+    /// and cannot be "id", "deleted", "created_at", "row_revision", or end with "\_id".
     #[prost(string, tag = "1")]
     pub name: ::prost::alloc::string::String,
     /// Logical column type. Supported values (case-insensitive):

common/src/proto/komp_ac.table_script.rs

@@ -10,7 +10,7 @@ pub struct PostTableScriptRequest {
     pub table_definition_id: i64,
     /// Required. The target column in the target table that this script computes.
     /// Must be an existing user-defined column in that table (not a system column).
-    /// System columns are reserved: "id", "deleted", "created_at".
+    /// System columns are reserved: "id", "deleted", "created_at", "row_revision".
     /// The column's data type must NOT be one of the prohibited target types:
     /// BIGINT, DATE, TIMESTAMPTZ
     /// Note: BOOLEAN targets are allowed (values are converted to Steel #true/#false).

common/src/proto/komp_ac.table_structure.rs

@@ -25,7 +25,7 @@ pub struct GetTableStructureResponse {
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct TableStructureResponse {
     /// Columns of the physical table, including system columns (id, deleted,
-    /// created_at), user-defined columns, and any foreign-key columns such as
+    /// created_at, row_revision), user-defined columns, and any foreign-key columns such as
     /// "\<linked_table>\_id". May be empty if the physical table is missing.
     #[prost(message, repeated, tag = "1")]
     pub columns: ::prost::alloc::vec::Vec<TableColumn>,

common/src/proto/komp_ac.tables_data.rs

@@ -149,6 +149,8 @@ pub struct RecomputedRow {
     pub table_name: ::prost::alloc::string::String,
     #[prost(int64, tag = "2")]
     pub row_id: i64,
+    #[prost(int64, tag = "3")]
+    pub row_revision: i64,
 }
 /// Soft-delete a single row.
 #[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
@@ -482,7 +484,7 @@ pub mod tables_data_client {
         ///
         /// * Validates profile and table definition
         /// * Returns all columns as strings (COALESCE(col::TEXT, '') AS col)
-        ///  including: id, deleted, all user-defined columns, and FK columns
+        ///  including: id, deleted, row_revision, all user-defined columns, and FK columns
         ///  named "\<linked_table>\_id" for each table link
         /// * Fails with NOT_FOUND if record does not exist or is soft-deleted
         /// * If the physical table is missing but the definition exists, returns INTERNAL
@@ -674,7 +676,7 @@ pub mod tables_data_server {
         ///
         /// * Validates profile and table definition
         /// * Returns all columns as strings (COALESCE(col::TEXT, '') AS col)
-        ///  including: id, deleted, all user-defined columns, and FK columns
+        ///  including: id, deleted, row_revision, all user-defined columns, and FK columns
         ///  named "\<linked_table>\_id" for each table link
         /// * Fails with NOT_FOUND if record does not exist or is soft-deleted
         /// * If the physical table is missing but the definition exists, returns INTERNAL