Index: branches/5.2.x/core/kernel/db/db_load_balancer.php
===================================================================
diff -u -N -r16658 -r16662
--- branches/5.2.x/core/kernel/db/db_load_balancer.php	(.../db_load_balancer.php)	(revision 16658)
+++ branches/5.2.x/core/kernel/db/db_load_balancer.php	(.../db_load_balancer.php)	(revision 16662)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: db_load_balancer.php 16658 2021-01-04 08:59:00Z alex $
+* @version	$Id: db_load_balancer.php 16662 2021-01-05 09:06:10Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2011 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -106,6 +106,13 @@
 	public $nextQueryCachable = false;
 
 	/**
+	 * The "no debugging" tate of the SQL queries.
+	 *
+	 * @var boolean
+	 */
+	public $noDebuggingState = false;
+
+	/**
 	 * Indicates, that next query should be sent to maser database
 	 *
 	 * @var bool
@@ -442,9 +449,13 @@
 			}
 		}
 
-		if ( $this->nextQueryCachable && is_object($conn) ) {
-			$conn->nextQueryCachable = true;
-			$this->nextQueryCachable = false;
+		if ( is_object($conn) ) {
+			$conn->noDebuggingState = $this->noDebuggingState;
+
+			if ( $this->nextQueryCachable ) {
+				$conn->nextQueryCachable = true;
+				$this->nextQueryCachable = false;
+			}
 		}
 
 		return $conn;
@@ -569,11 +580,11 @@
 	 *
 	 * @param string $sql
 	 * @param string $key_field
-	 * @param bool $no_debug
+	 * @param boolean|null $no_debug
 	 * @return Array
 	 * @access public
 	 */
-	public function Query($sql, $key_field = null, $no_debug = false)
+	public function Query($sql, $key_field = null, $no_debug = null)
 	{
 		$conn =& $this->chooseConnection($sql);
 
@@ -588,12 +599,12 @@
 	 *
 	 * @param string $sql
 	 * @param string $key_field
-	 * @param bool   $no_debug
+	 * @param boolean|null   $no_debug
 	 * @param string $iterator_class
 	 * @return kMySQLQuery|bool
 	 * @access public
 	 */
-	public function GetIterator($sql, $key_field = null, $no_debug = false, $iterator_class = 'kMySQLQuery')
+	public function GetIterator($sql, $key_field = null, $no_debug = null, $iterator_class = 'kMySQLQuery')
 	{
 		$conn =& $this->chooseConnection($sql);