chore: license header

src/common/meta/src/key.rs

@@ -49,10 +49,10 @@ pub mod schema_name;
 pub mod table_info;
 pub mod table_name;
 // TODO(weny): removes it.
+mod kv_backend_helper;
 #[allow(deprecated)]
 pub mod table_region;
 // TODO(weny): removes it.
-mod kv_backend_helper;
 #[allow(deprecated)]
 pub mod table_route;
 

src/common/meta/src/key/kv_backend_helper.rs

@@ -1,3 +1,17 @@
+// Copyright 2023 Greptime Team
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 use crate::error::Result;
 use crate::kv_backend::KvBackendRef;
 use crate::rpc::store::{CompareAndPutRequest, PutRequest};