diff --git a/modules/poll/poll.model.php b/modules/poll/poll.model.php
index a554d507a..c4335fde0 100644
--- a/modules/poll/poll.model.php
+++ b/modules/poll/poll.model.php
@@ -35,17 +35,18 @@
          * Return the result after checking if the poll has responses
          **/
         function getPollHtml($poll_srl, $style = '', $skin = 'default') {
-
             $args->poll_srl = $poll_srl;
             // Get the information related to the survey
-            $output = executeQuery('poll.getPoll', $args);
+			$columnList = array('poll_count', 'stop_date');
+            $output = executeQuery('poll.getPoll', $args, $columnList);
             if(!$output->data) return '';
 
             $poll->style = $style;
             $poll->poll_count = (int)$output->data->poll_count;
             $poll->stop_date = $output->data->stop_date;
 
-            $output = executeQuery('poll.getPollTitle', $args);
+			$columnList = array('poll_index_srl', 'title', 'checkcount', 'poll_count');
+            $output = executeQuery('poll.getPollTitle', $args, $columnList);
             if(!$output->data) return;
             if(!is_array($output->data)) $output->data = array($output->data);
             foreach($output->data as $key => $val) {
@@ -90,7 +91,8 @@
             $poll->poll_count = (int)$output->data->poll_count;
             $poll->stop_date = $output->data->stop_date;
 
-            $output = executeQuery('poll.getPollTitle', $args);
+			$columnList = array('poll_index_srl', 'checkcount', 'poll_count');
+            $output = executeQuery('poll.getPollTitle', $args, $columnList);
             if(!$output->data) return;
             if(!is_array($output->data)) $output->data = array($output->data);
             foreach($output->data as $key => $val) {
diff --git a/modules/session/session.model.php b/modules/session/session.model.php
index 792b6ff4f..4a8d07d25 100644
--- a/modules/session/session.model.php
+++ b/modules/session/session.model.php
@@ -21,7 +21,8 @@
             if(!$session_key || !$this->session_started) return;
 
             $args->session_key = $session_key;
-            $output = executeQuery('session.getSession', $args);
+			$columnList = array('session_key', 'cur_mid', 'val');
+            $output = executeQuery('session.getSession', $args, $columnList);
             // Confirm there is a table created if read error occurs
             if(!$output->toBool()) {
                 $oDB = &DB::getInstance();
diff --git a/modules/trackback/trackback.model.php b/modules/trackback/trackback.model.php
index 8c2311e54..16d4e570c 100644
--- a/modules/trackback/trackback.model.php
+++ b/modules/trackback/trackback.model.php
@@ -16,9 +16,10 @@
         /**
          * @brief Wanted a trackback information
          **/
-        function getTrackback($trackback_srl) {
+        function getTrackback($trackback_srl, $columnList = array()) {
             $args->trackback_srl = $trackback_srl;
-            return executeQuery('trackback.getTrackback', $args);
+            $output = executeQuery('trackback.getTrackback', $args, $columnList);
+            return $output;
         }
 
         /**