From 5e4ee61c833f7c847294a07b09c0a284998c3414 Mon Sep 17 00:00:00 2001
From: Vladilen Muzychenko <vladilenmuz@ydb.tech>
Date: Fri, 19 Sep 2025 09:31:48 +0200
Subject: [PATCH] Add new TTL settings

---
 protos/ydb_table.proto | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/protos/ydb_table.proto b/protos/ydb_table.proto
index fdfc79e..c43ecae 100644
--- a/protos/ydb_table.proto
+++ b/protos/ydb_table.proto
@@ -406,10 +406,32 @@ message ValueSinceUnixEpochModeSettings {
     uint32 expire_after_seconds = 3;
 }
 
+message EvictionToExternalStorageSettings {
+    // Path to external data source
+    string storage = 1;
+}
+
+message TtlTier {
+    oneof expression {
+        DateTypeColumnModeSettings date_type_column = 1;
+        ValueSinceUnixEpochModeSettings value_since_unix_epoch = 2;
+    }
+
+    oneof action {
+        google.protobuf.Empty delete = 3;
+        EvictionToExternalStorageSettings evict_to_external_storage = 4;
+    }
+}
+
+message TieredModeSettings {
+    repeated TtlTier tiers = 1;
+}
+
 message TtlSettings {
     oneof mode {
         DateTypeColumnModeSettings date_type_column = 1;
         ValueSinceUnixEpochModeSettings value_since_unix_epoch = 2;
+        TieredModeSettings tiered_ttl = 4;
     }
 
     // There is no guarantee that expired row will be deleted immediately upon