The file "patch-ss_images.sql" is wrong.
The wrong file:
ALTER TABLE /*$wgDBprefix*/site_stats ADD ss_images int(10) default '0';
SELECT @images := COUNT(*) FROM /*$wgDBprefix*/image;
UPDATE site_stats SET ss_images=@images;
The is correct:
ALTER TABLE /*$wgDBprefix*/site_stats ADD ss_images int(10) default '0';
SELECT @images := COUNT(*) FROM /*$wgDBprefix*/image;
UPDATE /*$wgDBprefix*/site_stats SET ss_images=@images;
Thomas Klein