diff --git a/ChangeLog b/ChangeLog
index 4f49b913b..fcf3e4d6a 100755
--- a/ChangeLog
+++ b/ChangeLog
@@ -7,6 +7,8 @@ $Source$
 
 2002-11-26 Marc Delisle  <lem9@users.sourceforge.net>
     * sql.php3: bug 644108: incorrect affected rows count
+    * libraries/sqlparser.data.php3: bug 643992, INTERVAL can be a
+      function but also a reserved word for date arithmetic functions
 
 2002-11-25 Marc Delisle  <lem9@users.sourceforge.net>
     * tbl_properties_structure.php3: wrong back link in case of errors
diff --git a/libraries/sqlparser.data.php3 b/libraries/sqlparser.data.php3
index 969a6829d..99382d1c8 100644
--- a/libraries/sqlparser.data.php3
+++ b/libraries/sqlparser.data.php3
@@ -274,6 +274,7 @@ if (!defined('PMA_SQP_DATA_INCLUDED')) {
         'INSERT',
         'INSERT_ID',
         'INSERT_METHOD',
+        'INTERVAL',
         'INTO',
         'IS',
         'ISOLATION',
@@ -420,7 +421,7 @@ if (!defined('PMA_SQP_DATA_INCLUDED')) {
         'YEAR_MONTH'
     );
     //$PMA_SQPdata_reserved_word_cnt = count($PMA_SQPdata_reserved_word);
-    $PMA_SQPdata_reserved_word_cnt = 240;
+    $PMA_SQPdata_reserved_word_cnt = 241;
 
     $PMA_SQPdata_column_type = array (
         'BIGINT',
diff --git a/libraries/sqlparser.lib.php3 b/libraries/sqlparser.lib.php3
index 811720f0b..ee74fd27d 100644
--- a/libraries/sqlparser.lib.php3
+++ b/libraries/sqlparser.lib.php3
@@ -2,6 +2,7 @@
 /* $Id$ */
 // vim: expandtab sw=4 ts=4 sts=4:
 
+
 /** SQL Parser Functions for phpMyAdmin
  *
  * Copyright 2002 Robin Johnson <robbat2@users.sourceforge.net>
@@ -1076,6 +1077,7 @@ if (!defined('PMA_SQP_LIB_INCLUDED')) {
         }
 
         for ($i = 0; $i < $arraysize; $i++) {
+            //echo "<b>" . $arr[$i]['data'] . "</b> " . $arr[$i]['type'] . "<br />";
             $before = '';
             $after  = '';
             $indent = 0;