Fix license and lint checks

scripts/docker/pg-dockerfile/Dockerfile

@@ -1,3 +1,20 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+#
 FROM postgres:16
 
 RUN apt-get update && apt-get install -y \

scripts/docker/pg-init-scripts/init.sql

@@ -1,3 +1,23 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ *
+ */
+
 CREATE TABLE locks (
     name TEXT PRIMARY KEY,
     leaderID TEXT NOT NULL

store/engine/postgresql/postgresql.go

@@ -99,9 +99,12 @@ func New(id string, cfg *Config) (*Postgresql, error) {
 		lockReleaseCh:  make(chan bool),
 		leaderChangeCh: make(chan bool),
 	}
+	err = p.initLeaderId()
+	if err != nil {
+		return nil, err
+	}
 	p.isReady.Store(false)
 	p.wg.Add(2)
-	p.initLeaderId()
 	go p.electLoop()
 	go p.observeLeaderEvent()
 	return p, nil
@@ -207,6 +210,11 @@ func (p *Postgresql) List(ctx context.Context, prefix string) ([]engine.Entry, e
 			Value: value,
 		})
 	}
+
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
 	return entries, nil
 }