SELECT  cat_id
  FROM pwg_user_access
  WHERE user_id = 
;
[mysql error 1064] You have an error in your SQL syntax.  Check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 3

SELECT cat_id
  FROM pwg_user_group AS ug INNER JOIN pwg_group_access AS ga
    ON ug.group_id = ga.group_id
  WHERE ug.user_id = 
;
[mysql error 1064] You have an error in your SQL syntax.  Check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 4

DELETE FROM pwg_user_cache_categories
  WHERE user_id = 
;
[mysql error 1064] You have an error in your SQL syntax.  Check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 2

  INSERT INTO pwg_user_cache_categories
    (user_id,cat_id,max_date_last,count_images,count_categories)
     VALUES(NULL,'416','2008-09-14 23:11:44','345','32')
    , (NULL,'430','2008-09-14 23:11:44','215','18')
    , (NULL,'431','2007-11-12 11:06:12','4','0')
    , (NULL,'435','2007-11-25 19:13:21','5','0')
    , (NULL,'440','2007-12-15 16:56:35','1','0')
    , (NULL,'444','2008-01-24 10:11:47','12','0')
    , (NULL,'446','2008-02-09 23:33:14','12','0')
[... je coupe, beaucoup de lignes comme ça]
    , (NULL,'271','2007-02-17 11:17:12','4','2')
    , (NULL,'274','2006-10-22 10:28:22','1','0')
    , (NULL,'292','2007-02-17 11:17:12','1','0')
    , (NULL,'304','2007-12-31 19:03:01','4','0')
    , (NULL,'463','2008-04-12 02:14:09','31','0')
;
[mysql error 1062] Duplicate entry '0-416' for key 1

DELETE FROM pwg_user_cache
  WHERE user_id = 
;
[mysql error 1064] You have an error in your SQL syntax.  Check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 2

INSERT INTO pwg_user_cache
  (user_id, need_update, forbidden_categories, nb_total_images)
  VALUES
  (,'false','4,5,142,158,164,233,234,235,282,436',5346)
;
[mysql error 1064] You have an error in your SQL syntax.  Check the manual that corresponds to your MySQL server version for the right syntax to use near ''false','4,5,142,158,164,233,234,235,282,436',5346)' at line 4