feat: add TieredStorageConfig to table admin api

Google APIs · copybara-github · commit a6cbf809c4c1 · 2026-01-30T19:31:05.000-08:00
PiperOrigin-RevId: 863493708
diff --git a/google/bigtable/admin/v2/table.proto b/google/bigtable/admin/v2/table.proto
@@ -1,4 +1,4 @@
-// Copyright 2025 Google LLC
+// Copyright 2026 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -205,6 +205,15 @@ message Table {
     AutomatedBackupPolicy automated_backup_policy = 13;
   }
 
+  // Rules to specify what data is stored in each storage tier.
+  // Different tiers store data differently, providing different trade-offs
+  // between cost and performance. Different parts of a table can be stored
+  // separately on different tiers.
+  // If a config is specified, tiered storage is enabled for this table.
+  // Otherwise, tiered storage is disabled.
+  // Only SSD instances can configure tiered storage.
+  TieredStorageConfig tiered_storage_config = 14;
+
   // The row key schema for this table. The schema is used to decode the raw row
   // key bytes into a structured format. The order of field declarations in this
   // schema is important, as it reflects how the raw row key bytes are
@@ -638,6 +647,27 @@ enum RestoreSourceType {
   BACKUP = 1;
 }
 
+// Config for tiered storage.
+// A valid config must have a valid TieredStorageRule. Otherwise the whole
+// TieredStorageConfig must be unset.
+// By default all data is stored in the SSD tier (only SSD instances can
+// configure tiered storage).
+message TieredStorageConfig {
+  // Rule to specify what data is stored in the infrequent access(IA) tier.
+  // The IA tier allows storing more data per node with reduced performance.
+  TieredStorageRule infrequent_access = 1;
+}
+
+// Rule to specify what data is stored in a storage tier.
+message TieredStorageRule {
+  // Rules to specify what data is stored in this tier.
+  oneof rule {
+    // Include cells older than the given age.
+    // For the infrequent access tier, this value must be at least 30 days.
+    google.protobuf.Duration include_if_older_than = 1;
+  }
+}
+
 // Represents a protobuf schema.
 message ProtoSchema {
   // Required. Contains a protobuf-serialized
