Add usage of in s3_storage_class in SETTINGS

src/Backups/BackupFactory.h

@@ -30,6 +30,7 @@ public:
         String compression_method;
         int compression_level = -1;
         String password;
+        String s3_storage_class;
         ContextPtr context;
         bool is_internal_backup = false;
         std::shared_ptr<IBackupCoordination> backup_coordination;

src/Backups/BackupSettings.cpp

@@ -21,6 +21,7 @@ namespace ErrorCodes
     M(String, id) \
     M(String, compression_method) \
     M(String, password) \
+    M(String, s3_storage_class) \
     M(Bool, structure_only) \
     M(Bool, async) \
     M(Bool, decrypt_files_from_encrypted_disks) \

src/Backups/BackupSettings.h

@@ -25,6 +25,9 @@ struct BackupSettings
     /// Password used to encrypt the backup.
     String password;
 
+    /// S3 storage class.
+    String s3_storage_class = "";
+
     /// If this is set to true then only create queries will be written to backup,
     /// without the data of tables.
     bool structure_only = false;

src/Backups/BackupsWorker.cpp

@@ -344,6 +344,7 @@ void BackupsWorker::doBackup(
         backup_create_params.compression_method = backup_settings.compression_method;
         backup_create_params.compression_level = backup_settings.compression_level;
         backup_create_params.password = backup_settings.password;
+        backup_create_params.s3_storage_class = backup_settings.s3_storage_class;
         backup_create_params.is_internal_backup = backup_settings.internal;
         backup_create_params.backup_coordination = backup_coordination;
         backup_create_params.backup_uuid = backup_settings.backup_uuid;

src/Backups/registerBackupEngineS3.cpp

@@ -52,7 +52,7 @@ void registerBackupEngineS3(BackupFactory & factory)
         const auto & args = params.backup_info.args;
 
         String s3_uri, access_key_id, secret_access_key;
-        String storage_class;
+        String storage_class = params.s3_storage_class;
 
         if (!id_arg.empty())
         {