accounts are strings in the client side2

common/proto/tables_data.proto

@@ -102,7 +102,8 @@ message PostTableDataRequest {
   // - System/FK columns:
   //    • "deleted" (BOOLEAN), optional; default FALSE if not provided
   //    • one BIGINT per link, named by whoever declared it
-  //    • "account" (slash-delimited account string) on ACCOUNTING-enabled tables
+  //    • "account" (required, non-null slash-delimited account string) on
+  //      ACCOUNTING-enabled tables
   //
   // Type expectations by SQL type:
   // - TEXT: string value; empty string is treated as NULL
@@ -182,6 +183,7 @@ message PutTableDataRequest {
   int64 id = 3;
 
   // Required. Columns to update (same typing rules as PostTableDataRequest.data).
+  // "account" may be omitted, but cannot be null when supplied.
   //
   // Special script rules:
   // - If a script targets column X and X is included here, the value for X must

common/src/proto/komp_ac.tables_data.rs

@@ -18,7 +18,8 @@ pub struct PostTableDataRequest {
     /// * System/FK columns:
     ///   • "deleted" (BOOLEAN), optional; default FALSE if not provided
     ///   • one BIGINT per link, named by whoever declared it
-    ///   • "account" (slash-delimited account string) on ACCOUNTING-enabled tables
+    ///   • "account" (required, non-null slash-delimited account string) on
+    ///   ACCOUNTING-enabled tables
     ///
     /// Type expectations by SQL type:
     ///
@@ -112,6 +113,7 @@ pub struct PutTableDataRequest {
     #[prost(int64, tag = "3")]
     pub id: i64,
     /// Required. Columns to update (same typing rules as PostTableDataRequest.data).
+    /// "account" may be omitted, but cannot be null when supplied.
     ///
     /// Special script rules:
     ///