diff --git a/src/Databases/MySQL/FetchTablesColumnsList.cpp b/src/Databases/MySQL/FetchTablesColumnsList.cpp
index e792385d12f..d668e79198c 100644
--- a/src/Databases/MySQL/FetchTablesColumnsList.cpp
+++ b/src/Databases/MySQL/FetchTablesColumnsList.cpp
@@ -102,8 +102,7 @@ std::map<String, ColumnsDescription> fetchTablesColumnsList(
         for (size_t i = 0; i < rows; ++i)
         {
             String table_name = table_name_col[i].safeGet<String>();
-            tables_and_columns[table_name].add(
-                    ColumnDescription(
+            ColumnDescription column_description(
                         column_name_col[i].safeGet<String>(),
                         convertMySQLDataType(
                                 type_support,
@@ -112,8 +111,11 @@ std::map<String, ColumnsDescription> fetchTablesColumnsList(
                                 is_unsigned_col[i].safeGet<UInt64>(),
                                 char_max_length_col[i].safeGet<UInt64>(),
                                 precision_col[i].safeGet<UInt64>(),
-                                scale_col[i].safeGet<UInt64>()),
-                        column_comment_col[i].safeGet<String>()));
+                                scale_col[i].safeGet<UInt64>())
+            );
+            column_description.comment = column_comment_col[i].safeGet<String>();
+            
+            tables_and_columns[table_name].add(column_description);
         }
     }
     return tables_and_columns;
diff --git a/src/Interpreters/MySQL/InterpretersMySQLDDLQuery.cpp b/src/Interpreters/MySQL/InterpretersMySQLDDLQuery.cpp
index 7ebc4f1feb9..bf4dfee2780 100644
--- a/src/Interpreters/MySQL/InterpretersMySQLDDLQuery.cpp
+++ b/src/Interpreters/MySQL/InterpretersMySQLDDLQuery.cpp
@@ -137,8 +137,12 @@ static ColumnsDescription createColumnsDescription(const NamesAndTypesList & col
             if (const auto * options = declare_column->column_options->as<MySQLParser::ASTDeclareOptions>())
                 if (options->changes.count("comment"))
                     comment = options->changes.at("comment")->as<ASTLiteral>()->value.safeGet<String>();
-
-        columns_description.add(ColumnDescription(column_name_and_type->name, column_name_and_type->type, comment));
+        
+        ColumnDescription column_description(column_name_and_type->name, column_name_and_type->type);
+        if(!comment.empty())
+            column_description.comment = std::move(comment);
+        
+        columns_description.add(column_description);
     }
 
     return columns_description;
diff --git a/src/Storages/ColumnsDescription.cpp b/src/Storages/ColumnsDescription.cpp
index cd7afae8a78..4a904c96432 100644
--- a/src/Storages/ColumnsDescription.cpp
+++ b/src/Storages/ColumnsDescription.cpp
@@ -43,8 +43,8 @@ namespace ErrorCodes
     extern const int LOGICAL_ERROR;
 }
 
-ColumnDescription::ColumnDescription(String name_, DataTypePtr type_, String comment_)
-    : name(std::move(name_)), type(std::move(type_)), comment(std::move(comment_))
+ColumnDescription::ColumnDescription(String name_, DataTypePtr type_)
+    : name(std::move(name_)), type(std::move(type_))
 {
 }
 
diff --git a/src/Storages/ColumnsDescription.h b/src/Storages/ColumnsDescription.h
index 338b519cee6..7fff22abf71 100644
--- a/src/Storages/ColumnsDescription.h
+++ b/src/Storages/ColumnsDescription.h
@@ -39,7 +39,7 @@ struct ColumnDescription
     ColumnDescription() = default;
     ColumnDescription(ColumnDescription &&) = default;
     ColumnDescription(const ColumnDescription &) = default;
-    ColumnDescription(String name_, DataTypePtr type_, String comment_ = "");
+    ColumnDescription(String name_, DataTypePtr type_);
 
     bool operator==(const ColumnDescription & other) const;
     bool operator!=(const ColumnDescription & other) const { return !(*this == other); }