we get dynamic position of the data for billions of rows of data now

.gitignore

@@ -15,3 +15,4 @@ mutants*/
 testing/
 run_bins/
 result
+corporate_erp/

common/proto/tables_data.proto

@@ -418,6 +418,10 @@ message GetTableDataResponse {
   // Active journal containing this row's automatic accounting line, when the
   // table is ACCOUNTING-enabled and the row has been posted.
   optional int64 journal_id = 6;
+
+  // Present when the row was loaded through a form-navigation RPC. The row and
+  // its numbering bounds come from the same server operation.
+  RowNavigation navigation = 7;
 }
 
 // Count non-deleted rows.
@@ -433,13 +437,34 @@ message GetTableDataCountRequest {
 message GetLastTableDataRequest {
   string profile_name = 1;
   string table_name = 2;
+  RowNavigationMode navigation_mode = 3;
+}
+
+// Controls how an unfiltered form numbers rows.
+enum RowNavigationMode {
+  // Actual database row id / highest visible row id. Deleted ids leave gaps.
+  ROW_NAVIGATION_MODE_ID = 0;
+  // Ordinal position / exact visible-row count. Deleted rows are omitted.
+  ROW_NAVIGATION_MODE_POSITION = 1;
+}
+
+// Complete numbering state returned with a navigated row.
+message RowNavigation {
+  RowNavigationMode mode = 1;
+  // Actual row id in ID mode; 1-based ordinal in POSITION mode. For an empty
+  // table this is the first new-row slot (1).
+  uint64 current = 2;
+  // Highest visible id in ID mode; exact visible-row count in POSITION mode.
+  uint64 total = 3;
 }
 
 message GetLastTableDataResponse {
-  // Zero when the table has no visible rows.
+  // Zero when the table has no visible rows. Retained as row identity; clients
+  // should use navigation for display bounds.
   int64 last_id = 1;
   // Absent when last_id is zero.
   GetTableDataResponse row = 2;
+  RowNavigation navigation = 3;
 }
 
 enum RowIdDirection {
@@ -452,11 +477,15 @@ message GetAdjacentTableDataRequest {
   string table_name = 2;
   int64 anchor_id = 3;
   RowIdDirection direction = 4;
+  RowNavigationMode navigation_mode = 5;
+  // Current ordinal position when navigation_mode is POSITION. Ignored in ID mode.
+  uint64 anchor_position = 6;
 }
 
 message GetAdjacentTableDataResponse {
   // Absent when no visible row exists in the requested direction.
   GetTableDataResponse row = 1;
+  RowNavigation navigation = 2;
 }
 
 // Fetch by ordinal position among non-deleted rows (1-based).
@@ -467,6 +496,10 @@ message GetTableDataByPositionRequest {
   // Required. Table name within the profile.
   string table_name = 2;
 
-  // Required. 1-based position by id ascending among rows with deleted = FALSE.
+  // Set this or record_id, never both. This is the 1-based position by id
+  // ascending among rows with deleted = FALSE.
   int32 position = 3;
+  // Direct row lookup that also returns its ID or ordinal navigation bounds.
+  int64 record_id = 4;
+  RowNavigationMode navigation_mode = 5;
 }

common/src/proto/komp_ac.tables_data.rs

@@ -376,6 +376,10 @@ pub struct GetTableDataResponse {
     /// table is ACCOUNTING-enabled and the row has been posted.
     #[prost(int64, optional, tag = "6")]
     pub journal_id: ::core::option::Option<i64>,
+    /// Present when the row was loaded through a form-navigation RPC. The row and
+    /// its numbering bounds come from the same server operation.
+    #[prost(message, optional, tag = "7")]
+    pub navigation: ::core::option::Option<RowNavigation>,
 }
 /// Count non-deleted rows.
 #[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
@@ -394,15 +398,33 @@ pub struct GetLastTableDataRequest {
     pub profile_name: ::prost::alloc::string::String,
     #[prost(string, tag = "2")]
     pub table_name: ::prost::alloc::string::String,
+    #[prost(enumeration = "RowNavigationMode", tag = "3")]
+    pub navigation_mode: i32,
+}
+/// Complete numbering state returned with a navigated row.
+#[derive(Clone, Copy, PartialEq, Eq, Hash, ::prost::Message)]
+pub struct RowNavigation {
+    #[prost(enumeration = "RowNavigationMode", tag = "1")]
+    pub mode: i32,
+    /// Actual row id in ID mode; 1-based ordinal in POSITION mode. For an empty
+    /// table this is the first new-row slot (1).
+    #[prost(uint64, tag = "2")]
+    pub current: u64,
+    /// Highest visible id in ID mode; exact visible-row count in POSITION mode.
+    #[prost(uint64, tag = "3")]
+    pub total: u64,
 }
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct GetLastTableDataResponse {
-    /// Zero when the table has no visible rows.
+    /// Zero when the table has no visible rows. Retained as row identity; clients
+    /// should use navigation for display bounds.
     #[prost(int64, tag = "1")]
     pub last_id: i64,
     /// Absent when last_id is zero.
     #[prost(message, optional, tag = "2")]
     pub row: ::core::option::Option<GetTableDataResponse>,
+    #[prost(message, optional, tag = "3")]
+    pub navigation: ::core::option::Option<RowNavigation>,
 }
 #[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
 pub struct GetAdjacentTableDataRequest {
@@ -414,12 +436,19 @@ pub struct GetAdjacentTableDataRequest {
     pub anchor_id: i64,
     #[prost(enumeration = "RowIdDirection", tag = "4")]
     pub direction: i32,
+    #[prost(enumeration = "RowNavigationMode", tag = "5")]
+    pub navigation_mode: i32,
+    /// Current ordinal position when navigation_mode is POSITION. Ignored in ID mode.
+    #[prost(uint64, tag = "6")]
+    pub anchor_position: u64,
 }
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct GetAdjacentTableDataResponse {
     /// Absent when no visible row exists in the requested direction.
     #[prost(message, optional, tag = "1")]
     pub row: ::core::option::Option<GetTableDataResponse>,
+    #[prost(message, optional, tag = "2")]
+    pub navigation: ::core::option::Option<RowNavigation>,
 }
 /// Fetch by ordinal position among non-deleted rows (1-based).
 #[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
@@ -430,9 +459,15 @@ pub struct GetTableDataByPositionRequest {
     /// Required. Table name within the profile.
     #[prost(string, tag = "2")]
     pub table_name: ::prost::alloc::string::String,
-    /// Required. 1-based position by id ascending among rows with deleted = FALSE.
+    /// Set this or record_id, never both. This is the 1-based position by id
+    /// ascending among rows with deleted = FALSE.
     #[prost(int32, tag = "3")]
     pub position: i32,
+    /// Direct row lookup that also returns its ID or ordinal navigation bounds.
+    #[prost(int64, tag = "4")]
+    pub record_id: i64,
+    #[prost(enumeration = "RowNavigationMode", tag = "5")]
+    pub navigation_mode: i32,
 }
 /// A link resolved exactly as the source row stored it, together with the
 /// target row's current state. The physical companion version column remains
@@ -474,6 +509,35 @@ impl ResolvedTableLinkStatus {
         }
     }
 }
+/// Controls how an unfiltered form numbers rows.
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord, ::prost::Enumeration)]
+#[repr(i32)]
+pub enum RowNavigationMode {
+    /// Actual database row id / highest visible row id. Deleted ids leave gaps.
+    Id = 0,
+    /// Ordinal position / exact visible-row count. Deleted rows are omitted.
+    Position = 1,
+}
+impl RowNavigationMode {
+    /// String value of the enum field names used in the ProtoBuf definition.
+    ///
+    /// The values are not transformed in any way and thus are considered stable
+    /// (if the ProtoBuf definition does not change) and safe for programmatic use.
+    pub fn as_str_name(&self) -> &'static str {
+        match self {
+            Self::Id => "ROW_NAVIGATION_MODE_ID",
+            Self::Position => "ROW_NAVIGATION_MODE_POSITION",
+        }
+    }
+    /// Creates an enum from field names used in the ProtoBuf definition.
+    pub fn from_str_name(value: &str) -> ::core::option::Option<Self> {
+        match value {
+            "ROW_NAVIGATION_MODE_ID" => Some(Self::Id),
+            "ROW_NAVIGATION_MODE_POSITION" => Some(Self::Position),
+            _ => None,
+        }
+    }
+}
 #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord, ::prost::Enumeration)]
 #[repr(i32)]
 pub enum RowIdDirection {

web/src/pages/import_export/export/logic.rs

@@ -11,7 +11,9 @@ use crate::{
     AppState,
     definitions::{
         table_structure::GetTableStructureRequest,
-        tables_data::{GetTableDataByPositionRequest, GetTableDataCountRequest},
+        tables_data::{
+            GetTableDataByPositionRequest, GetTableDataCountRequest, RowNavigationMode,
+        },
     },
     {i18n::Locale, tr},
     services::{authenticated_request, reject_cross_site},
@@ -156,6 +158,8 @@ pub(crate) async fn export_csv(
                 profile_name: profile_name.clone(),
                 table_name: table.name.clone(),
                 position: position as i32,
+                record_id: 0,
+                navigation_mode: RowNavigationMode::Position as i32,
             };
             let mut data = state.tables_data.clone();
             let response = match data.get_table_data_by_position(match authenticated_request(&headers, request) {