Changed close to _close and timing of emit on error event.

Author: cjbj

lib/querystream.js

@@ -131,9 +131,11 @@ QueryStream.prototype._read = function () {
     self._resultSet._getRows(fetchCount, function(err, rows) {
       if (err) {
         // We'll return the error from getRows, but first try to close the resultSet.
-        self._resultSet.close(function() {});
+        // Calling the C layer close directly to avoid assertions on the public method
+        self._resultSet._close(function() {
+          self.emit('error', err);
+        });
 
-        self.emit('error', err);
         return;
       }