Add featch columns names

README.md

@@ -53,6 +53,11 @@ try {                           |    |              |   |
         cout << get<0>(row) << " " << get<1>(row) << endl;
     }
 
+    // access columns name
+    for (auto column_name : response.columns_name) {
+        cout << column_name << endl;
+    }
+
 } catch (const string err) {
     cout << err << endl;
 }

lib/mysql.hpp

@@ -5,7 +5,6 @@
 #include <mutex>
 #include <thread>
 #include <future>
-// #include <iostream>
 #include <string>
 #include <vector>
 #include <tuple>
@@ -36,7 +35,8 @@ class MySQL_Res : public vector<tuple<Types...>> {
     bool have_result = false;
     uint16_t affected = 0;
     uint16_t rows = 0;
-    uint16_t columns = (int)tuple_size<tuple<Types...>>::value;
+    uint16_t columns = sizeof...(Types);
+    vector<string> columns_name;
 };
 
 /**
@@ -156,8 +156,15 @@ class MySQL {
                 ResultSet* res = stmt->getResultSet();
                 result.rows = res->rowsCount();
 
+                ResultSetMetaData *metaData = res->getMetaData();
+                int columnCount = metaData->getColumnCount();
+
+                for (int i = 1; i <= columnCount; ++i) {
+                    result.columns_name.push_back(metaData->getColumnName(i));
+                }
+
                 while (res->next()) {
-                    result.push_back(MySQL::getRow<Types...>(res, std::make_index_sequence<sizeof...(Types)>{}));
+                    result.push_back(MySQL::getRow<Types...>(res, make_index_sequence<sizeof...(Types)>{}));
                 }
 
                 res->close();

test/test.cpp

@@ -11,7 +11,7 @@ using namespace marcelb;
 int main() {
     try {
         // MySQL mydb("tcp://192.168.2.10:3306", "dinio", "H€r5elfInd1aH@nds", "dinio", 1);
-        MySQL mydb("tcp://192.168.2.10:3306", "dinio", "H€r5elfInd1aH@nds", "dinio", 5);
+        MySQL mydb("tcp://bitelex.ddns.net:3306", "dinio", "H€r5elfInd1aH@nds", "dinio", 5);
 
         sleep(2);
 
@@ -115,6 +115,10 @@ int main() {
                 cout << get<0>(row) << " " << get<1>(row) << endl;
             }
 
+            for (auto column_name : response.columns_name) {
+                cout << column_name << endl;
+            }
+
         } catch (const string err) {
             cout << err << endl;
         }