Index: class.ux_t3lib_db.php
===================================================================
--- class.ux_t3lib_db.php	(revision 2832)
+++ class.ux_t3lib_db.php	(working copy)
@@ -2361,6 +2361,12 @@
 					if ($sqlPartArray[$k]['table'] && $this->mapping[$sqlPartArray[$k]['table']]['mapTableName'])	{
 						$sqlPartArray[$k]['table'] = $this->mapping[$sqlPartArray[$k]['table']]['mapTableName'];
 					}
+
+						// Map fieldnames in SQL-functions like MIN(), MAX() or SUM()
+					if ($this->mapping[$t]['mapFieldNames'][$sqlPartArray[$k]['func_content']])	{
+						$sqlPartArray[$k]['func_content.'][0]['func_content'] = $this->mapping[$t]['mapFieldNames'][$sqlPartArray[$k]['func_content']];
+						$sqlPartArray[$k]['func_content'] = $this->mapping[$t]['mapFieldNames'][$sqlPartArray[$k]['func_content']];
+					}
 				}
 			}
 		}