sequelize error picks up message from db err

lib/dialects/postgres/query.js

@@ -266,7 +266,7 @@ module.exports = (function() {
         } else {
           return new sequelizeErrors.UniqueConstraintError({
             error: err,
-            message: 'Could not further parse error message.'
+            message: err.message
           });
         }
         break;