Update message level sent to client on postgres

lib/dialects/postgres/connection-manager.js

@@ -95,7 +95,7 @@ ConnectionManager.prototype.connect = function(config) {
   }).tap(function (connection) {
   }).tap(function (connection) {
     if (self.sequelize.config.keepDefaultTimezone) return;
     if (self.sequelize.config.keepDefaultTimezone) return;
     return new Promise(function (resolve, reject) {
     return new Promise(function (resolve, reject) {
-      connection.query("SET TIME ZONE INTERVAL '" + self.sequelize.options.timezone + "' HOUR TO MINUTE").on('error', function (err) {
+      connection.query("SET client_min_messages TO warning; SET TIME ZONE INTERVAL '" + self.sequelize.options.timezone + "' HOUR TO MINUTE").on('error', function (err) {
         reject(err);
         reject(err);
       }).on('end', function () {
       }).on('end', function () {
         resolve();
         resolve();