Index: branches/unlabeled/unlabeled-1.82.2/core/kernel/db/db_event_handler.php
===================================================================
diff -u -r7837 -r7842
--- branches/unlabeled/unlabeled-1.82.2/core/kernel/db/db_event_handler.php	(.../db_event_handler.php)	(revision 7837)
+++ branches/unlabeled/unlabeled-1.82.2/core/kernel/db/db_event_handler.php	(.../db_event_handler.php)	(revision 7842)
@@ -1807,7 +1807,7 @@
 
 			// 2. create fields (for customdata item)
 			$fields = $this->Application->getUnitOption($event->Prefix, 'Fields', Array());
-			$field_options = Array('type' => 'string', 'formatter' => 'kMultiLanguage', 'not_null' => 1, 'db_type' => 'text', 'default' => '');
+			$field_options = Array('type' => 'string', 'formatter' => 'kMultiLanguage', 'db_type' => 'text', 'default' => '');
 			foreach ($custom_fields as $custom_id => $custom_params) {
 				if (isset($fields['cust_'.$custom_id])) continue;
 				$fields['cust_'.$custom_id] = $field_options;
Index: branches/unlabeled/unlabeled-1.10.2/core/units/general/helpers/multilanguage.php
===================================================================
diff -u -r7636 -r7842
--- branches/unlabeled/unlabeled-1.10.2/core/units/general/helpers/multilanguage.php	(.../multilanguage.php)	(revision 7636)
+++ branches/unlabeled/unlabeled-1.10.2/core/units/general/helpers/multilanguage.php	(.../multilanguage.php)	(revision 7842)
@@ -140,8 +140,15 @@
 							$field_mask['type'] = $field_options['db_type'];
 						}
 						$field_mask['default'] = 'DEFAULT '.$default_value;
-						$field_mask = $field_mask['name'].' '.$field_mask['type'].' '.$field_mask['null'].' '.$field_mask['default'];
-
+						
+						if (strtoupper($field_mask['type']) == 'TEXT') {
+							// text fields in mysql doesn't have default value
+							$field_mask = $field_mask['name'].' '.$field_mask['type'].' '.$field_mask['null'];
+						}
+						else {
+							$field_mask = $field_mask['name'].' '.$field_mask['type'].' '.$field_mask['null'].' '.$field_mask['default'];
+						}
+						
 						$sqls[] = 'ALTER TABLE '.$table_name.( $this->generateAlterSQL($field_mask, $created_count + 1, $create_count) );
 					}
 				}