From 1dc5c4cba336b2bf3e4ee7219b296f8762522a95 Mon Sep 17 00:00:00 2001
From: Yuriy <yurrio@ya.ru>
Date: Sun, 7 Apr 2019 15:33:06 +0300
Subject: [PATCH] explicitly defined constructors

---
 dbms/src/Core/MySQLProtocol.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/dbms/src/Core/MySQLProtocol.h b/dbms/src/Core/MySQLProtocol.h
index 488bf1f7e7a..f22aeaf35f5 100644
--- a/dbms/src/Core/MySQLProtocol.h
+++ b/dbms/src/Core/MySQLProtocol.h
@@ -301,6 +301,10 @@ public:
     String database;
     String auth_plugin_name;
 
+    HandshakeResponse() = default;
+
+    HandshakeResponse(const HandshakeResponse &) = default;
+
     void readPayload(String s) override
     {
         std::istringstream ss(s);
@@ -368,6 +372,10 @@ class NullTerminatedString : public ReadPacket
 public:
     String value;
 
+    NullTerminatedString() = default;
+
+    NullTerminatedString(const NullTerminatedString &) = default;
+
     void readPayload(String s) override
     {
         if (s.length() == 0 || s.back() != 0)
@@ -542,6 +550,10 @@ class ComFieldList : public ReadPacket
 public:
     String table, field_wildcard;
 
+    ComFieldList() = default;
+
+    ComFieldList(const ComFieldList &) = default;
+
     void readPayload(String payload)
     {
         std::istringstream ss(payload);