Fix headers

src/libs/middlewares/downloadDatabase.js

@@ -20,8 +20,8 @@ module.exports = function download(table, mappingTable) {
                 req.sql.from(table);
                 result.forEach((field) => {
                     req.sql.field(field.name, field.target_name);
-                    if(header === '') header += result.target_name;
-                    else header = header + ';' + result.target_name;
+                    if(header === '') header += field.target_name;
+                    else header = header + ';' + field.target_name;
                 });
 
                 let form = {