Add support for simple list

src/Common/ZooKeeper/Types.h

@@ -36,4 +36,5 @@ Coordination::RequestPtr makeCheckRequest(const std::string & path, int version)
 
 Coordination::RequestPtr makeGetRequest(const std::string & path);
 Coordination::RequestPtr makeListRequest(const std::string & path);
+Coordination::RequestPtr makeSimpleListRequest(const std::string & path);
 }

src/Common/ZooKeeper/ZooKeeper.cpp

@@ -1222,6 +1222,13 @@ Coordination::RequestPtr makeListRequest(const std::string & path)
     return request;
 }
 
+Coordination::RequestPtr makeSimpleListRequest(const std::string & path)
+{
+    auto request = std::make_shared<Coordination::ZooKeeperSimpleListRequest>();
+    request->path = path;
+    return request;
+}
+
 std::string normalizeZooKeeperPath(std::string zookeeper_path, bool check_starts_with_slash, Poco::Logger * log)
 {
     if (!zookeeper_path.empty() && zookeeper_path.back() == '/')

src/Common/ZooKeeper/ZooKeeperCommon.cpp

@@ -485,6 +485,11 @@ ZooKeeperMultiRequest::ZooKeeperMultiRequest(const Requests & generic_requests,
             checkOperationType(Read);
             requests.push_back(std::make_shared<ZooKeeperGetRequest>(*concrete_request_get));
         }
+        else if (const auto * concrete_request_simple_list = dynamic_cast<const ZooKeeperSimpleListRequest *>(generic_request.get()))
+        {
+            checkOperationType(Read);
+            requests.push_back(std::make_shared<ZooKeeperSimpleListRequest>(*concrete_request_simple_list));
+        }
         else if (const auto * concrete_request_list = dynamic_cast<const ListRequest *>(generic_request.get()))
         {
             checkOperationType(Read);

src/Common/ZooKeeper/ZooKeeperCommon.h

@@ -351,9 +351,6 @@ struct ZooKeeperListRequest : ListRequest, ZooKeeperRequest
 
 struct ZooKeeperSimpleListRequest final : ZooKeeperListRequest
 {
-    ZooKeeperSimpleListRequest() = default;
-    explicit ZooKeeperSimpleListRequest(const ListRequest & base) : ZooKeeperListRequest(base) {}
-
     OpNum getOpNum() const override { return OpNum::SimpleList; }
     ZooKeeperResponsePtr makeResponse() const override;
 };

src/Coordination/KeeperStorage.cpp

@@ -1655,6 +1655,10 @@ struct KeeperStorageMultiRequestProcessor final : public KeeperStorageRequestPro
                     check_operation_type(OperationType::Read);
                     concrete_requests.push_back(std::make_shared<KeeperStorageListRequestProcessor>(sub_zk_request));
                     break;
+                case Coordination::OpNum::SimpleList:
+                    check_operation_type(OperationType::Read);
+                    concrete_requests.push_back(std::make_shared<KeeperStorageListRequestProcessor>(sub_zk_request));
+                    break;
                 default:
                     throw DB::Exception(
                         ErrorCodes::BAD_ARGUMENTS, "Illegal command as part of multi ZooKeeper request {}", sub_zk_request->getOpNum());