fix for server enconding when using SQL_ASCII and latin1 enconding

lib/client.js

@@ -39,11 +39,12 @@ var Client = function(config) {
   this.connection = c.connection || new Connection({
     stream: c.stream,
     ssl: this.connectionParameters.ssl,
-    keepAlive: c.keepAlive || false
+    keepAlive: c.keepAlive || false,
+    client_encoding: this.connectionParameters.client_encoding || 'utf8',
   });
   this.queryQueue = [];
   this.binary = c.binary || defaults.binary;
-  this.encoding = 'utf8';
+  this.encoding = this.connectionParameters.client_encoding || 'utf8';
   this.processID = null;
   this.secretKey = null;
   this.ssl = this.connectionParameters.ssl || false;

lib/connection.js

@@ -39,7 +39,7 @@ var Connection = function(config) {
   this.lastOffset = 0;
   this.buffer = null;
   this.offset = null;
-  this.encoding = 'utf8';
+  this.encoding = config.client_encoding || 'utf8';
   this.parsedStatements = {};
   this.writer = new Writer();
   this.ssl = config.ssl || false;