Fix style, build

src/Storages/PostgreSQL/PostgreSQLConnection.h

@@ -45,7 +45,7 @@ private:
 
     ConnectionPtr connection;
     std::string connection_str, address;
-    std::atomic<uint8_t> ref_count;
+    std::atomic<uint8_t> ref_count{0};
 };
 
 using PostgreSQLConnectionPtr = std::shared_ptr<PostgreSQLConnection>;

src/Storages/PostgreSQL/PostgreSQLConnectionPool.cpp

@@ -50,7 +50,6 @@ void PostgreSQLConnectionPool::initialize()
 }
 
 
-
 WrappedPostgreSQLConnection PostgreSQLConnectionPool::get()
 {
     std::lock_guard lock(mutex);

src/Storages/PostgreSQL/PostgreSQLReplicaConnection.cpp

@@ -52,13 +52,6 @@ PostgreSQLReplicaConnection::PostgreSQLReplicaConnection(
 }
 
 
-PostgreSQLReplicaConnection::PostgreSQLReplicaConnection(const PostgreSQLReplicaConnection & other)
-        : replicas(other.replicas)
-        , num_retries(other.num_retries)
-{
-}
-
-
 WrappedPostgreSQLConnection PostgreSQLReplicaConnection::get()
 {
     for (size_t i = 0; i < num_retries; ++i)

src/Storages/PostgreSQL/PostgreSQLReplicaConnection.h

@@ -19,7 +19,7 @@ public:
         const String & config_prefix,
         const size_t num_retries_ = POSTGRESQL_CONNECTION_DEFAULT_RETRIES_NUM);
 
-    PostgreSQLReplicaConnection(const PostgreSQLReplicaConnection & other);
+    PostgreSQLReplicaConnection(const PostgreSQLReplicaConnection & other) = default;
 
     WrappedPostgreSQLConnection get();